10 December 2019: Nolan's paper on the discovery of a persistent distonic radical cation based on an N-heterocyclic carbene-carboodimiide (NHC-CDI) adduct published online in Angewandte Chemie. Congrats Nolan! Stay tuned for more details.
4 December 2019: Our collaborative work with Prof. Jeff Grossman and Prof. Yang Shao-Horn using molecular dynamics simulations to understand how structural modifications to PEO impact lithium transport in concentrated polymer electrolytes published online in Chemistry of Materials! Click HERE to read the paper. Congrats to Arthur from the Grossman group and the whole team!
21 November 2019: The Johnson group is thrilled to welcome 7 new PhD students! Looking forward to working with you Abe, Hadiqa, Khrystofor, Landon, Leticia, Valerie, and Yasmeen!
21 November 2019: Our collaborative work with Prof. Ju Li and Prof. Yang Shao-Horn on a new class of electrolytes for lithium metal batteries published online in Energy and Environmental Science! Click on the image below to read the paper, and stay tuned for more exciting results from this team!
19 November 2019: Nate and Peter's paper describing Cu-based polyMOC gels featuring photoswitchable junctions published online in Angewandte Chemie! This work comprises a wonderful collaboration with the Willard, Van Voorhis, and Craig (Duke) groups, and is supported by the NSF Center for the Chemistry of Molecularly Optimized Networks (MONET). Click on the image below to read the paper.
28 October 2019: Jeremiah and our great collaborator Prof. Yang Shao-Horn were interviewed by C&E News as part of a story on Li-air battery technology. Check out the story HERE or click on the image below.
28 October 2019: Peyton and Hung's paper on bifunctional silyl ether monomers that enable the synthesis of polynorbornene-based copolymers with tunable degradability through ROMP published online in Nature Chemistry! Congrats Peyton and Hung! Click on the image below to read the paper and check out the MIT News highlight HERE.
22 October 2019: The Johnson group joins the Broad Institute of MIT and Harvard as an Associate Member. We are honored to be included within the incredible scientific community of the Broad. Looking forward to many exciting new opportunities!
12 September 2019: Exciting collaborative work led by Prof. Brad Olsen on the development of BigSMILES appears online in ACS Central Science! Click on the image below to read the paper.
10 September 2019: Yuwei, Mingjun, Wenxu, and Matthew's exciting work on the use of a polymeric ligand to facilitate the synthesis of MOF nanoparticles published online in Angewandte Chemie. Click on the image below to read the paper.
9 August 2019: Mingjun, Wenxu, and Bo's collaborative work with the Shao-Horn group appears online in Chemistry of Materials. Click on the image below to read the paper.
25 July 2019: Collaborative paper with the Shao-Horn group on the design of novel electrolytes for Li-O2 batteries accepted for publication in Chem. Congrats to the whole team! Click on the image below to read the paper.
17 July 2019: Yuwei is named as a finalist for the Reaxys PhD Prize 2019! Congrats Dr. Gu!!
16 July 2019: Yuwei and Julia's review article entitled, "A unifying review of polymer networks: from rubbers and gels to porous frameworks," published online in Angewandte Chemie. Congrats on this great work! Click on the image below to read the paper.
27 June 2019: The Jonhson group mints 4 new PhDs! Congrats to Dr. Deborah Ehrlich (not shown in the picture below), Dr. Yuwei Gu (left), Dr. Yivan Jiang (middle), and Dr. Hung Nguyen (right)!
31 May 2019: PhD student Julia Zhao presented at the Excellence in Polymer Graduate Research Symposium at the ACS National Meeting in Orlando. Congrats to Julia for the well-deserved recognition!
29 May 2019: Jeremiah is honored to be named a Blavatnik National Awards for Young Scientists Finalist! Thank you to the New York Academy of Sciences and the Blavatnik Family Foundation. Click on the image below for more details.
13 May 2019: The group (finally) joined Twitter! Follow us@johnsonchem!
3 May 2019: Hung successfully defends his thesis! Congrats to Dr. Nguyen!!
2 May 2019: Yivan successfully defends his thesis! Congrats to Dr. Jiang!!
29 April 2019: Junpeng's paper on quantifying primary loops in sidechain crosslinked polymer networks and single-chain nanoparticles (SCNPs) published online in Chemical Science. Congrats on this great work! Click on the image below to read the paper.
19 April 2019: Yuwei successfully defends his thesis! Congrats to Dr. Gu!!
12 April 2019: Deb successfully defends her thesis! Congrats to Dr. Ehrlich!!
4 April 2019: Gaby and Hung's paper on ROMP of polyoxazoline macromonomers published online in ACS Macro Letters. Congrats on this nice work! Click on the image below to read the paper.
21 March 2019: Former graduate student Alex Zhukhovitskiy is featured in the ACS Polymer Division (POLY) Member Spotlight. Click on the image below to read the highlight.
11 March 2019: Congratulations to Matthew Golder for accepting a tenure-track position in the Department of Chemistry at the University of Washington! Click on the image below to read the announcement on the UW website.
9 March 2019: Samantha selected to receive a 2019 Misrock Postdoctoral Fellowship award for her proposed work on using brush-arm star polymers for CRISPR/Cas-9-mediated cancer therapy. Congrats to Samantha for this very prestigious honor!
5 March 2019: The somewhat annual Johnson Group Ski Trip to Killington, VT happened from Feb 19-21. Thanks to Samantha, Nate, and Shannon for organizing the trip, Samantha and Manuel for cooking great dinners, and Julia for designing the logo for the group sweatshirt (see below). A great time was had by all. Looking forward to next year!
4 March 2019: Congratulations to former graduate student Alex Zhukhovitskiy for accepting a tenure-track position in the Department of Chemistry at the University of North Carolina-Chapel Hill! Click on the image below to read the announcement on the UNC website.
25 February 2019: Julia and Yuwei's review on the topology of polymer networks accepted for publication in Trends in Chemistry. This short review provides an excellent introduction to how topology dictates the properties of polymeric materials, and highlights recent developments in the area of using chemistry to characterize and control polymer network topology. Congrats to Julia and Yuwei for this great work! More details to come...
18 February 2019: Former postdoc Junpeng Wang begins his independent career at the University of Akron!
13 February 2019: Yuwei wins the Extraordinary Prize of the Chinese Government Award for Outstanding Self-Financed Students Abroad. He is one of only 10 such awardees worldwide. Congrats to Yuwei for this very prestigious honor!
8 February 2019: Jessica's paper on trithiocarbonate-mediated photo-controlled radical polymerization of acrylates and acrylamides under ambient conditions (e.g., open vials) and with no additives published online in Polymer Chemistry. This work represents a significant advance toward our ultimate goal of enabling practical Living Additive Manufacturing (see ACS Cent. Sci. 2017, 3, 124). Congrats to Jessica for this excellent work! Click on the image below to read the paper.
8 February 2019: Collaborative paper with the Olsen group on a new and improved version of Real Elastic Network Theory published online in Macromolecules. Congrats to Tzyy-Shyang! Click on the image below to read the paper.
17 December 2018: Michelle's paper on bidentate NHC-thiolate ligands for gold nanorods is highlighted in Nature Chemistry News & Views!
15 December 2018: Welcome to our four new graduate students Allie Sourakov, David Lundberg, Keith Husted, and Michael Stolberg!
Check out the group page for more information about them.
11 December 2018: Matt's paper on "ROMP-out" highlighted on the cover of the latest issue of Macromolecules.
14 November 2018: Matt's paper on "ROMP-out" published online in Macromolecules. Click on the image below to read the paper. Congrats Matt!
12 November 2018: Michelle's paper on the synthesis of exceptionally robust bidentate NHC-thiolate-stabilized gold nanorods published online in Nature Chemistry. Congrats Michelle!
5 November 2018: Former visting student Dr. Manuel Hartweg re-joins the group as a postdoc. Welcome back, Manuel!
18 October 2018: Hung's paper on triply-loaded nitroxide BASPs for metal-free magnetic resonance imaging of tumors published online in ACS Nano. Congrats to Hung and thanks to all of our collaborators for this great work! Click on the image below to read the paper.
13 October 2018: The group and friends visited Connor's Farm for festive fall activities including apple picking, corn mazing, and cider donut eating!
10 October 2018: Yuwei's paper on harnessing the leaving groups in KAT ligation amide bond forming reactions to program the topology of polymer netwoks in a chemically traceless manner is published online in JACS. Congrats to Yuwei and thanks to the Bode group at ETH for this fruitful collaboration! Click on the image below to read the paper.
9 October 2018: Yoshiki and Ryoichi's paper on the impact of PEO architcture on lithium ion conductivity published online in Journal of Polymer Science, Part A. Congrats to Yoshiki and Ryoichi for this excellent work! Click on the image below to read the paper.
17 September 2018: Jeremiah receives an Arthur C. Cope Scholar Award!
15 September 2018: We are thrilled to be part of a new NSF Center for Chemical Innovation. Our center, called the "Center for the Chemistry of Molecularly Optimized Networks," or "MONET" for short, consists of researchers from the Craig and Rubinstein groups at Duke University, the Kalow group at Northwestern University, and the Johnson and Olsen groups here at MIT. Together, we seek to elucidate molecular design principles that will enable finely tuned control over the properties of polymer networks for emerging applications.
11 September 2018: Dr. Samantha Kristufek joins the group as a new postdoc!
5 September 2018: Bo's paper on the role of selective anion binding in controlling litihium ion conductivity and transference number highlighted as a supplementary cover in JACS. Click on the image below to read the paper.
23 August 2018: Wenxu's paper on LiAlH4 reduction of polymethyl(meth)acrylate-based block copolymers to generate novel hydroxy-based block copolymers with exceptionally high chi values published online in Macromolecules. Congrats Wenxu for this great work! Click on the image below to read the paper.
23 August 2018: Shuting's perspective article on an exciting development in lithium-oxygen battery chemistry from Nazar and coworkers published online in Science. Great work Shuting! Click on the image below to read the paper.
20 August 2018: Matt and Jenny's paper on brush-arm star polymer (BASP)-based telmisartan prodrugs for liver fibrosis therapy appears online in Nature Biomedical Engineering! Congrats to Matt, Jenny, and everyone on the team for this great work!
13 August 2018: Editorial article on polymers at the interface with biology published online in Biomacromolecules. Special thanks to Tim Deming and Harm-Anton Klok for including our work.
8 August 2018: Members of the group spent the morning volunteering at Cradles to Crayons in Brighton, MA. We distributed backpacks filled with school supplies to local teachers and organizations that serve kids in need. We all had a great time, though Matt almost fell out of a semi truck. Check out a photo of the group during a short break in the action:
25 July 2018: Dr. Jessica Lamb receives an NIH F32 Postdoctoral Fellowship. Congrats Jessica!
18 July 2018: Yuwei's paper on photoswitching the topology of polymer metal-organic cage (polyMOC) gels published online in Nature! Congrats to Yuwei for this awesome work! Click on the image below to read the paper.
17 July 2018: Bo's paper on using anion recognition to control the conductivity of lithium in solution is published in JACS. In this paper, Bo convincingly shows how the compound cyanostar, which is a macrocycle that selectively binds PF6 anions in a 2:1 ratio, can be used to increase the conductivity and transference number of lithium in a low dielectric medium (THF). This work was made possible by a great collaboration with the Shao-Horn and Flood labs at MIT and University of Indiana, respectively. Congrats to Bo and the whole team! Click on the image below to read the paper.
10 July 2018: Welcome back visiting undergraduate student Leticia Costa who joins us again this summer!
1 July 2018: Visiting undergraduate Oscar Gonzalez joins for the summer from Texas A+M University. Visiting PhD student Martin Lahn Henriksen joins from Aarhus University in Denmark.
7 June 2018: Collaborative paper with the Ross and Alexander-Katz groups on the self-assembly of polystyrene-branch-polydimethylsiloxane Janus bottlebrush copolymers appears online in Nano Letters. Congrats to the team for this great work! Click on the image below to read the paper.
1 June 2018: Junpeng Wang will start his independent career as an Assistant Professor at the University of Akron in the Department of Polymer Science in January 2019.
18 May 2018: Collaborative paper with the Zhong and Osuji groups on the self-assembly of branched macromonomers and Janus bottlebrush polymers with oligomeric sidechains appears online in Angewandte Chemie. In this work, we show that Janus bottlebrush polymers with very short sidechains can self-assemble to form classical block copolymer morphologies with very small (sub-10 nm) domain sizes. Most importantly, the mechanical properties of the resulting materials are determined by the bottlebrush backbone length rather than the block copolymer sidechain length, which means that our materials can be mechanically robust despite their very small domain sizes. Congrats to Zi-Hao and the whole team for this great work! Click on the image below to read the paper.
15 May 2018: Jeremiah becomes an Associate Editor of the journal Polymer Chemistry!
5 May 2018: The group convened at Fugakyu to enjoy sushi boats and to say goodbye to Dr. Yoshiki Shibuya and welcome Dr. Masamichi Shirakura and Dr. Teruhiko Saito. Best of luck in your future career at L'Oréal Yoshiki. We'll miss you!
1 May 2018: Welcome to visiting scientists Dr. Masamichi Shirakura from Otsuaka Pharmaceuticals and Dr. Teruhiko Saito from Panasonic!
30 April 2018: We are thrilled to be part of a Stand Up to Cancer "Dream Team" focused on the development of early diagnostic and therapeutic tools for multiple myeloma (MM) patients. In this project, we will work with clinicians to design targeted MRI contrast agents for identification of early-stage MM. We will combine these diagnostic tools with macromolecular prodrug therapies to enable early disease intervention. Looking forward to working with the Ghobrial (Dana-Farber Cancer Institute) and Borello (Johns Hopkins University School of Medicine) labs on this exciting and impactful project!
20 April 2018: Collaborative paper with the Osuji group on the self-assembly of branched macromonomers and bottlebrush polymers that contain polymer and mesogen sidechains published in Macromolecules. Congrats to Katerina and Ken for this great work! Click on the image below to read the paper.
11 April 2018: PhD student Julia Zhao orgnizes MIT's 2018 Polymer Day! As the name suggests, Polymer Day is a day where we celebrate all things polymer-related at MIT and in the greater region. Students, post-docs, faculty, and industry representatives come from all over to learn about and discuss cutting edge research in polymer science and engineering. Thanks to Julia for making this event a great success!
11 April 2018: Former PhD student Michelle MacLeod named a 2018 Change Maker by MIT's Violence Prevention and Response, Title IX, and Bias Response Offices! Michelle's efforts to raise awareness of sexual harassment and create an inclusive environment for all will have a longlasting impact on our Department and MIT as a whole. Congrats Michelle for this greatly deserved award!
10 April 2018: PhD student Yuwei Gu featured in several exciting venues! First, he presented at the Excellence in Polymer Graduate Research Symposium at the ACS National Meeting in New Orleans (top image below), where he also won a Division of Polymer Chemistry (POLY) Outstanding Poster Award. The latter led to him being featured in the latest POLY Division spotlight (bottom image below). Congrats to Yuwei for the well-deserved recognition!
26 March 2018: Nolan's paper describing a new class of main-chain-zwitterionic supramolecular polymers, called poly(azolium amidinate)s or "PAzAms," published online in Macromolecules. These fascinating new polymers are derived from the formation of N-heterocyclic carbene (NHC)-carbodiimide (CDI) adducts. Nolan shows that it is possible to finely tune the (thermo)dynamics of pZAms to enable their controlled depolymerization and morphing between different PAzAm structures. Congrats Nolan! Click on the image below to read the paper.
26 March 2018: Collaborative paper with the Shao-Horn group (MIT Mechanical Engineering) and Samsung Advanced Institute of Technology (SAIT) on the design of modular salts for battery applications published online in Energy and Environmental Science. In this work, we sought to expand the structural scope of sulfonimides, which are common components of lithium and other batteries. The famous TFSI anion is frequently used in batteries thanks to its excellent stability, but it cannot be easily chemically modified to alter its properties such as solubility and size. In this paper, we develop a new family of sulfonimides called Fluorinated Aryl Sulfonimide Tagged ("FAST") anions that can be rapidly and easily modified to generate metal salts with tunable properties. FAST salts greatly expand the number of available Li or other metal salts available for use in battery research. Congrats to the whole team, especially Mingjun and Shuting, for this great effort! Click on the image below to read the paper.
26 March 2018: Hung's paper on a scalable synthetic strategy for multivalent macromonomers is published online in ACS Macro Letters. This approach described in this paper enables the synthesis of our macromonomers in 3 total steps (2 steps longest linear sequence) in 92% yield on the 100 g scale with no chromatography. In addition, it allows us to easily incorporate multiple functionalities onto the same macromonomer, which is a gamechanger for our projects on drug delivery and imaging with bottlebrush and brush-arm star polymers. Congrats Hung! Click on the image below to read the paper.
23 March 2018: It was great to hang out with friends and family at the ACS National Meeting in New Orleans!
23 March 2018: Dr. Peyton Shieh is awarded an American Cancer Society Postdoctoral Fellowship! Congrats Peyton!
11 March 2018: Welcome to new UROP Rebecca Sloan and visting graduate student Zhihao Huang!
7 February 2018: Matt and Yivan's paper on the role of stereochemistry in the self-assembly of unimolecular block copolymers is highlighted as a supplementary cover in JACS. Click on the image below to read the paper.
5 February 2018: Junpeng's paper on counting secondary loops in end-linked polymer networks appears online in ACS Macro Letters! In this paper, Junpeng figured out a way to use a non-degradable polymer chain in the context of Network Disassembly Spectrometry (NDS) to provide the first direct measurements of the secondary loop fraction in polymer networks. Prior to this work, it was only possible to measure primary loop defects. As we continue to investigate the impact of topological defects in polymer networks, Junpeng's "NDS2.0" will be an invaluable tool. Congrats to Junpeng and the rest of the group for this great work! Click on the image below to read the paper.
2 February 2018: New Koch Institute for Integrative Cancer Research at MIT members announced. Click on the image below for details.
23 January 2018: Matt and Yivan's paper on the role of stereochemistry in the self-assembly of unimolecular block copolymers appears online in JACS. In this paper, Matt and Yivan prepared a series of stereoisomeric block copolymers using our IEG strategy. Remarkably, they discovered that these block copolymers self-assemble to form different morphologies. This work elucidates the fundamental role of stereochemistry in block copolymer assembly. Congrats to Matt, Yivan, and the rest of the group for this great work! Click on the image below to read the paper.
17 January 2018: Collaborative paper with the Olsen group (MIT Chemical Engineering) on the topological structure of TetraPEG gels appears online in Macromolecules. In this paper, we developed kinetic graph theory and Monte Carlo simulations that allow for the study of cyclic topologies in A_4 + B_4 polymer networks. These studies confirm that secondary loops, wherein two strands link two adjacent junctions, play a particularly fundamental role in the properties of these ubiquitous materials. Congrats to Tzyy-Shyang and Rui for yet another great work! Click on the image below to read the paper.
18 December 2017: The group welcomes new visiting student Shuto Mochizuki and visiting professor Prof. Masahiro Fujita.
5 December 2017: Collaborative paper with the Olsen group (MIT Chemical Engineering) on quantifying the gel point in end-linked polymer networks appears online in ACS Macro Letters. In this paper, we use Monte Carlo simulations to show that if loop defects defects are properly accounted for, one can predict the gel point without any other fitting parameters. These results further highlight the fundamental role of loops in determining the properties of polymer networks. Congrats to Rui and Tzyy-Shyang for this great work! Click on the image below to read the paper.
4 December 2017: Jeremiah receives the 2016-2017 School of Science Prize in Undergraduate Teaching! It is an incredible honor to be included on this list of amazing teachers... thank you MIT!
15 November 2017: Jeremiah joins the Koch Institute for Integrative Cancer Research at MIT.
14 November 2017: The group welcomes 3 new graduate students! Sachin Bhagchandani, Matthew Pearson, and Wencong Wang!
8 November 2017: The group welcomes new UROP Alexandra Sourakov!
3 November 2017: Collaborative paper with the Shao-Horn group (MIT Mechanical Engineering) and Samsung Advanced Institute of Technology (SAIT) on understanding electrolyte stability in the Li-air battery cathode published in Journal of Materials Chemistry A. In this paper, we calculate the bond dissociation energies, acidities, driving forces for nucleophilic substitution, and electrochemical stabilities of a wide range of organic molecules under conditions that mimic the Li-air battery cathode. These results allowed us to predict structure-stability relationships and degradation mechanisms that agreed with experimental stability tests. Congrats to the whole team, especially Shuting and Mao, for this great effort! Click on the image below to read the paper.
30 October 2017: Welcome to visting student Gaby Gil Alvaradejo and visting professor Xiaojuan Liao!
14 September 2017: The Tech, MIT's student newspaper, interviews Jeremiah about the new Minor in Polymers and Soft Matter (MPSM).
If you're an MIT undergraduate interested in polymer science and/or engineering, and you'd like to pursue the MPSM, click on the following links for details:
14 September 2017: Congratulations to Dr. Michelle MacLeod for successfully defending her thesis. The group's 4th PhD!!!
5 September 2017: Dr. Bo Qiao joins the group as a new joint postdoc with the Shao-Horn Group!
30 August 2017: MIT unveils the new Minor in Polymers and Soft Matter (MPSM)! If you're an MIT undergraduate interested in polymer science and/or engineering, and you'd like to pursue the MPSM, contact Jeremiah or click here for details.
22 August 2017: Michelle's block-co-polyMOF paper selected as the Paper of the Month by the Polymer Chemistry Blog. Congrat's Michelle!
21 August 2017: Yoshiki's paper on mikto-brush-arm star polymers ("MBASPs") is published online in ACS Macro Letters. In this paper, Yoshiki demonstrates the synthesis of brush-arm star polymers with arms of varied composition through the convergent cross-linking of independently synthesized living bottlebrush polymers. Congrats Yoshiki!
19 August 2017: New postdoc Dr. Jessica Lamb arrives from Cornell!
10 August 2017: Welcome to new postdoc Dr. Eileen Burke who joins us from UW-Madison!
12 July 2017: Hung's paper on BASP-ORCAs, the first metal-free paramagentic agents with sufficient stability and relaxivity for MRI imaging in vivo up to 20 h following injection, is published in ACS Central Science. This work shows that organic radical MRI contrast agents can potentially compete with metal-based agents, the latter of which suffer from serious toxicity concerns. Congrats Hung!
12 July 2017: Michelle's paper introducing "Block Co-PolyMOFs" is published in Polymer Chemistry. Block Co-PolyMOFs are novel polymer-polyMOF hybrid materials derived from block copolymers that feature a polyMOF forming oligomer block and an amorphous polymer block. Michelle demonstrates that these block copolymers can bind to zinc ions and yield easily processable and highly stable crystalline polyMOFs embedded within amorphous polymer networks. Congrats Michelle!
26 June 2017: Nate Oldenhuis receives an NIH F32 Postdoctoral Fellowship. Congrats Nate!
21 June 2017: Welcome to new postdoc Dr. Yoshiki Shibuya!
11 June 2017: Welcome to the rest of our summer visiting students: Julian Grundler, Sarah Al Abdullatif, and Leticia Costa!
8 June 2017: Congratulations to Dr. Ken Kawamoto, the group's third PhD!!!
29 May 2017: Welcome to the first of our summer visitors! Prof. Ellane Park joins us from Rollins College and Manuel Hartweg is a visiting graduate student from Queen Mary University of London.
24 May 2017: Michelle MacLeod was honored at the 2017 celebration of Graduate Women of Excellence. Congrats Michelle!
18 May 2017: Welcome to new postdoc Dr. Nate Oldenhuis!
10 May 2017: Congrats to Dr. Ken Kawamoto for successfully defending his thesis! The 3rd group PhD!!
24 April 2017: Yuwei's paper on using semi-batch monomer addition to control loops in polymer networks and thereby enhance or tune their mechanical properties is published online in PNAS. Congrats Yuwei!
19 April 2017: Ken Kawamoto presented his research on branched-bottlebrush polymer assembly in the Excellence in Graduate Polymer Research Symposium at the ACS National Meeting in San Francisco. Congrats Ken!
11 April 2017: Jiwon Park awarded a Fulbright Scholarship! Congrats Jiwon!
10 April 2017: New post-doc Peyton Shieh joins the group! Welcome Peyton!
3 April 2017: We are happy to be part of a multi-PI team sponsored by the Toyota Research Institute that will design novel polymers for energy storage applications. Click here for the MIT News announcement.
7 March 2017: Collaborative paper with the Olsen group on odd-even effects of junction functionality on the primary loop fraction in end-linked polymer networks appears online in Macromolecules. Thanks to Brad and Rui for the great work!
1 March 2016: The group welcomes two new group members: Simi Bright (MIT UROP) and Dr. Junpeng Wang (post-doc)! See group page for more details.
10 February 2017: Jeremiah joins the editorial advisory boards of Macromolecules and ACS Macro Letters.
6 February 2017: Collaborative paper with the Balazs group on photoregeneration of severed gels published online in Soft Matter. Thanks to Anna and her group for the great collaboration!
3 February 2017: Matthew Golder receives an NIH F32 Postdoctoral Fellowship. Congrats Matt!
2 February 2017: Mao's paper on a thermally responsive and recyclable gel photoredox catalyst for multiple-stimuli- and logic-gated controlled radical polymerization appears online in Journal of the American Chemical Society. Congrats Mao!
23 January 2017: Jiwon Park is highlighted by MIT News. Click on the image below to read the story. Congrats Jiwon for your amazing accomplishments!
13 January 2017: Mao and Yuwei's paper on Living Additive Manufacturing via Photo-Redox Catalyzed Growth (PRCG) of polymer networks published online in ACS Central Science. Click on the image below to view the open access paper, andread the MIT News story here. Congrats Mao and Yuwei and the whole team!
5 December 2016: Yufeng's paper on Star PolyMOCs published online in Angewandte Chemie. Click on the image below to view the paper. Congrats Yufeng!
15 September 2016: Mingjiang, Rui, and Ken's paper on quantifying how topological defects impact the elasticity of polymer networks published online in Science. Congrats to the team! Click on the image or links below to see the paper, read the MIT News highlight, and watch our video on loops in polymer networks!
14 September 2016: Jonathan's paper with Peter Bruno and Mike Hemann (MIT Dept. of Biology) on using RNAi signatures to investigate the mechanism of action of 3-drug conjugated BASP nanoparticles built from platinum crosslinkers published online in JACS. Congrats to Jonathan and the whole BASP team! Click on the image below to read the paper.
8 September 2016: Alex and Julia's paper on the role of polymer chain length and branching in the structure and properties of polyMOCs published online in Macromolecules. Congrats!
1 September 2016: Ken and Mingjiang's paper on the self-assembly of "A-branch-B" diblock bottlebrush copolymers published oline in JACS. Congrats Ken and Mingjiang!
17 August 2016: Our work on structurally controlled polymers using Iterative Exponential Growth (IEG) highlighted in a wonderful feature article by Mark Peplow in Nature:
16 August 2016: Yufeng's paper on "Block Co-PolyMOCs" published in JACS. Congrats Yufeng!
3 August 2016: Welcome to new postdocs Dr. Wenxu Zhang and Dr. Mingjun Huang, as well as visiting professors Xingui Li and Meirong Huang.
1 August 2016: Former group member Dr. Yufeng Wang begins his new position as Assistant Professor of Chemistry at The University of Hong Kong. Congrats Yufeng!
21 July 2016: Dr. Matt Golder wins an IUPAC-SOLVAY International Award for Young Chemists for his PhD thesis work with Prof. Ramesh Jasti. Congrats Matt on this very prestigious award!
21 July 2016: Yivan's paper on IEG synthesis and bulk self-assembly of uniform diblock copolymers published online in JACS. Congrats Yivan!
15 July 2016: Former PhD student Dr. Alex Zhukhovitskiy wins a Life Sciences Research Foundation postdoctoral fellowship for his upcoming work with Prof. Dean Toste at UC Berkeley. Congrats Alex on this very prestigious fellowship, and best of luck at Berkeley!
5 July 2016: The group welcomes visiting students Yoshiki Shibuya, Wencong Wang, and Seth Freedman!
1 July 2016: Alex's paper on inserting persistent carbenes into Si-H bonds in molecules, nanoparticles, and planar surfaces appears online in JACS. Congrats Alex!
1 July 2016: Former group member Dr. Mingjiang Zhong begins his new position as Assistant Professor of Chemical Engineering at Yale University. Congrats Mingjiang!
1 July 2016: Former group member Dr. Jonathan C. Barnes begins his new position as Assistant Professor of Chemistry at Washington University in St. Louis. Congrats Jonathan!
14 June 2016: The group welcomes new post-doc Dr. Farrukh Vohidov! See the group page for more info.
10 June 2016: Congratulations to Dr. Alex Zhukhovitskiy, the group's first PhD!!!
10 June 2016: The group welcomes visiting students Yasmeen AlFaraj and Yongsheng Gao! See the group page for more info.
7 May 2016: Paper with Rui Wang, Brad Olsen, and Alfredo Alexander-Katz on "Universal Cyclic Topology in Polymer Networks" appears in Physical Review Letters. Congrats to all and especially Rui! In this work, Rui was able to show that all loop defects in polymer networks are kinetically linked, such that if we can measure one (which we can) we can measure them all. Truly outstanding!
1 April 2016: Collaborative paper with Anna Balazs using simulations to study phase separation in our photo-growth gels published in Polymer Chemistry!
15 March 2016: Mao and Mingjiang's review on light-controlled radical polymerization appears online in Chemical Reviews!
25 February 2016: Jonathan Barnes accepts a position as Assistant Professor in the Department of Chemistry at Washington University in St. Louis! Congrats! See Announcement Here.
19 February 2016: Mao and Mingjiang's Chemical Reviews
article on Photo-controlled Living Radical Polymerization is accepted for publication! Details to follow. Congrats!
16 February 2016: The group welcomes new visiting student Alan Enciso and new UROP Cathy Zhang!
14 February 2016: Welcome to two new group members: Shidong (Will) Deng (visting undergraduate student from Tianjin University) and Prof. Jun Lin (visiting professor from Yunnan University).
13 January 2016: IEG+ paper highlighted in Synfacts!
4 January 2016: Jeremiah receives the 2016 Young Talent Award from the organizers of the 1st International Conference of Molecular Engineering of Polymers (MEP-1). This exciting conference will be held in October 2016 in Shanghai. Thank you to the MEP-1 organizers and, in particular, Prof. Jiandong Ding.
9 December 2015: Yufeng's baby boy Charles Hanyou Wang is born! Congrats Yufeng!
1 December 2015: Ken and Mingjiang's paper on counting primary loops in tetrafunctional and mixed-junction networks prepared using click chemistry appears online in Macromolecules!
16 November 2015: Alex and Mingjiang's paper on high branch functionality and loop rich PolyMOCs appears online in Nature Chemistry! Congrats!
12 November 2015: The group welcomes back Julia Zhao! Once a visiting undergraduate student, now a PhD student. Welcome Julia!
5 October 2015: New post-doc Matt Golder joins the group! See group page for more information. Welcome Matt!
1 October 2015: Alex and Mingjiang's paper on highly branched and loop rich "Polymer Metal-Organic-Cage" (PolyMOC) gels is accepted for publication in Nature Chemistry! Details to follow. Congrats Alex and Mingjiang, and thanks to all of our collaborators on this work!
22 September 2015: Alex and Michelle's review article on carbenes in surface chemistry is published online in Chemical Reviews! A lot of very hard work went into this fantastic paper. Congrats!
14 September 2015: IEG+ paper highlighted by Chemistry World!
7 September 2015: Jonathan's paper on the synthesis of stereo- and sequence-controlled polymers by iterative exponential growth plus side-chain functionalization (IEG+) appears online in Nature Chemistry! Congrats Jonathan!
19 August 2015: Flow-IEG paper highlighted by C&EN@ACS Boston 2015 and C&E News, Science and Technology, News of the Week!
12 August 2015: The joint Johnson/Van Humbeck group volleyball team (Jeremiah was a Van Humbeck Whale) takes 3rd place in the Chemistry Department summer beach volleyball league!
12 August 2015: Frank's paper on continuous-flow iterative exponential growth (flow-IEG) of unimolecular polymers appears in PNAS! Congrats Frank!
17 June 2015: Michelle's paper on PEGylated-NHC functionalized gold nanoparticles appears in JACS! Congrats Michelle!
30 April 2015: Mao and Michelles's paper on using 10-phenylphenothiazine as an organic photo-redox catalyst to mediate visible-light controlled radical polymerization from a trithiocarbonate appears online in ACS Macro Letters! Congrats!
20 April 2015: Jonathan wins an IUPAC-SOLVAY International Award for Young Chemists for his PhD thesis work with Prof. Fraser Stoddart. Congrats Jonathan on this very prestigious award!
9 April 2015: Ken's paper on combining tetrazine-metal coordination and Diels-Alder reactions for the synthesis of functional supramolecular gels appears online in ACS Macro Letters! Congrats Ken!
2 April 2015: The group welcomes new post-doc Dr. Qixian Chen!
1 April 2015: Congrats to Hung for receiving an NSF Graduate Research Fellowship!
17 March 2015: Mao's paper on improving photo-controlled radical polymerization from trithiocarbonates using continuous flow techniques appears online in Chemical Communications Congrats Mao!
4 March 2015: NHC cycloelimination paper selected for the cover of Chem. Euro. J.!
20 February 2015: Alex and Julie's paper on cycloelimination of NHCs appears online in Chem. Euro. J. Congrats!
13 February 2015: Michelle receives a WIC Travel Award for support of her trip to the ACS National Meeting in Denver, CO. Congrats Michelle!
15 January 2015: The group welcomes a new UROP: Katherine Young!
18 November 2014: Molly and Jessica's paper on nitroxide-based branched bottlebrush polymers for dual-modality imaging in vivo appears in Nature Communications. Congrats! Thanks to the Rajca group at University of Nebraska and the Hammond group here at MIT for the fruitful collaboration.
13 November 2014: The group welcomes four new PhD students: Yuwei Gu, Gihan Hewage, Yivan Jiang, and Hung Nguyen!
15 October 2014: The group welcomes two new post-docs: Dr. Mao Chen and Dr. Yufeng Wang!
3 October 2014: The group successfully escapes from a room with a zombie.
1 October 2014: Several new faces in the lab! Welcome Dr. Mao Chen, Julie Geng, and Vivian Tian!
29 August 2014: Alex is recognized with a prestigious American Chemical Society Division of Organic Chemistry Graduate Fellowship. Congrats Alex!
12 August 2014: The lab receives a MIT-DuPont Alliance grant for the synthesis of "perfect polymers". Thank you DuPont!
8 August 2014: Angela and Yan's paper on the synthesis of pH sensitive BASP nanoparticles is accepted for publication in ACS Macro Letters. Congrats!
20 June 2014: The group welcomes visiting CMSE intern Julia Zhao!
11 June 2014: The group welcomes visiting MSRP student Leila Terrab!
10 June 2014: The lab receives NIH support for the development of organic radical MRI contrast agents. Thank you NIH.
9 June 2014: The lab receives MIT Lincoln Labs ACC support for the development of new materials for photo-controlled 3D printing. Thank you ACC.
29 May 2014:Huaxing, Eva, and Jenny's article on the application of crossover experiments to the analysis of molecular defects in polymer networks appears online in JACS!
27 May 2014: Alex receives a prestigious 2014 Intel PhD Fellowship! Congrats Alex!!
7 May 2014: Jeremiah receives a 2014 DuPont Young Professor Award! Thank you DuPont!
18 April 2014: Jeremiah receives a 2014 NSF CAREER Award! Thank you NSF!
10 April 2014:Yan and Jenny's work on the synthesis of multi-drug-loaded nanoparticles for ratiometric triplex combination cancer therapy appears in JACS. Congrats Yan and Jenny!
18 March 2014: The group receives a MIT Energy Initiative (MITEI) Seed Fund Grant for the development of hybrid metal-organic polymeric materials with Prof. Niels Holten-Anderson's group in MIT's Department of Materials Science and Engineering. Thank you MITEI.
20 February 2014: Jonathan receives 2014 Life Sciences Research Foundation (LSRF) Postdoctoral Fellowship! Congrats Jonathan!
18 February 2014: Jeremiah receives 2014 Sloan Research Fellowship! Also congrats to colleagues Mircea Dinca, Bradley Olsen, and the rest of the MIT Sloan Fellows!
6 January 2014: The group welcomes visiting student Johanna Ertl!
1 January 2014: The group welcomes two new undergraduate researchers Chew and Katherine!
15 November 2013: The group welcomes new graduate student Deborah Ehrlich. Welcome Deborah!
15 October 2013: The group welcomes new post-doc Dr. Mingjiang Zhong. Welcome Mingjiang!
11 October 2013: Jenny and Angela's JoVE article titled "Particles Without a Box" is published online. Go see Jenny and Angela make a nice series of our PEG-BASPs HERE .
7 October 2013:Alan and Angela's paper that describes the synthesis of PS-PLA Miktoarm BASPs was accepted as part of a special issue of Macromolecular Rapid Communications focused on cutting-edge polymer synthesis. Congrats Alan and Angela!
30 September 2013:Alan and Yan's paper that describes the "Brush-first and Click Method" for photo-triggered drug delivery appears online as part of a special issue of Photochemistry and Photobiology dedicated to the memory of Prof. Nick Turro.
15 September 2013: Jeremiah was selected as an ACS PMSE young investigator. He will present as part of the PMSE Young Investigator Symposium at the Spring 2014 National ACS meeting in Dallas, TX.
14 September 2013: The Johnson group has received a grant from the National Science Foundation (NSF) under the "Designing Materials to Revolutionize and Engineer Our Future" (DMREF) program. Our project will focus on the design, synthesis, and computational analysis of polymer networks for emerging applications. This project will continue our strong/ongoing collaboration with Prof. Bradley Olsen's group in Chemical Engineering at MIT. Thank you NSF!
23 August 2013:Alexandra's "tetrazine-norbornene Diels-Alder model networks"paper appears in Macromolcular Symposia as part of a special issue highlighting the 2012 Polymer Networks Group conference in Jackson Hole, WY. Congrats Alexandra!
Note that while our article was in press, Professor Kristi Anseth's group published a related paper on tetrazine-norbornene hydrogels for 3D cell culture. See Kristi's excellent paper here: link.
20 August 2013: Congrats to Ken, Molly, and Angela for winning Department of Chemistry Awards for Outstanding Teaching!
20 August 2013: The Johnson and Surendranath Labs enjoyed an afternoon of intense laser tag action:
17 June 2013: The group welcomes two visiting students: Marco Messina from Mark Olsen's lab at Texas A&M and Tianyuan (Ryan) Liu from Roxbury Community College. It's great to have you both!
3 June 2013:Alex's JACS paper receives media attention:
2 February 2013: The Johnson Group on their first somewhat annual ski trip:
18 January 2013:Huaxing's "photo-controlled gel growth" Angewandte Chemie paper appears online. Congrats Huaxing!
16 January 2013 : Two bits of great news:
(1) Huaxing's "photo-controlled gel growth" paper chosen as a "Hot Paper" by the editors of Angewandte Chemie: Angewandte "Hot Papers"
(2) Huaxing's PNAS paper on counting loops highlighted in Nature News and Views: Nature News and Views
27 November 2012: "Brush-first" paper highlighted in SYNFACTS .
15 November 2012: The group welcomes four 1st-year graduate students: Angela, Ken, Michelle, and Molly!
9 November 2012: Counting loops by "S/L Method" paper appears in PNAS (click on the image below to access the paper). Congrats Huaxing, Jen, and Alexandra!
4 October 2012:"Pseudo-alternating polymers" paper appears in Macromolecules. Congrats Alan and Alex!
6 September 2012: "Brush-first" paper appears in JACS. Congrats Jenny, Alan and Alex!
19 July 2012: The Johnson Group beach volleyball team:
1 June 2012: We welcome Eva-Maria Schoen to the group! Eva-Maria is visitng from Professor David Diaz Diaz's group. We are thrilled to have her here for the summer!
20 May 2012: The Johnson group celebrates their 6-month anniversary with an exciting day of food, drink, and laser tag.
8 May 2012: Johnson group journal blog launched. Click HERE to see what the group is reading.
30 March 2012: Alan O. Burts receives an NSF graduate fellowship. Alex receive's a Morse Travel Grant for the Fall 2012 ACS Meeting in Philadelphia. Congrats Alan and Alex!
17, 24 February 2012: The Johnson group celebrates the first annual Flory Day(s)! Each student gave a presentation on fundamental aspects of synthetic polymer chemistry. Topics included chain and step-growth polymerization, gelation and network formation, controlled polymerization processes, and polymer architectures. Fun was had by all.
11 November 2011: Welcome first year graduate students Alexandra, Jenny, Alan, Alex, and Jessica to the group! Also, welcome Huaxing Zhou (post-doc) and Elisha Yadgaran (UROP)! First group meeting today.
31 October 2011: Paper that describes EPR studies of nitroxide-labeled brush polymers appears in JACS.
8 September 2011: Classes begin! For info on Jeremiah's course, 5.53 Molecular Structure and Reactivity, go here .
15 August 2011: We welcome Jen Woo to the group!
11 July 2011: The Johnson Group begins! We welcome first year MIT graduate students Melissa Donaldson and Alan Burts!
9 June 2011: Thanks to Tim Swager for inviting Jeremiah to the NSF-sponsored "Future Faculty Workshop: Diverse Leaders of Tomorrow," which was held June 19-21 at the MIT Endicott House. For more information on this year's workshop click here .
1 July 2011: The Johnson group begins!
We seek to cultivate a diverse and intellectually engaging atmosphere of collaboration, integrity, and scientific excellence: an “incubator for discovery.”
Research:
Click on the image below to view/download the 2019 Johnson Group research poster.
Current Members:
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Yasmeen Alfaraj Graduate Student
Yasmeen was born and raised in Saudi Arabia, and moved to the United States to pursue her undergraduate studies. She received her B.Sc. in Chemistry from UC Berkeley, where she conducted research in Prof. Omar Yaghi's Lab working on post-synthetic modifications of Covalent Organic Frameworks. She also spent a summer working on BASP nanoparticle synthesis for target drug-delivery systems in the Johnson Lab. After taking California's weather to transition from Saudi's heat, she decided to return to MIT and brave New England's winters in pursuit of a PhD focusing on polymer chemistry and organic materials. In her free time, she enjoys attending comedy clubs, hiking, fencing, and cooking.
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Sachin Bhagchandani Graduate Student
Sachin was raised in Bombay, India and obtained his undergraduate education at the Indian Institute of Technology, Roorkee. He spent his summers working on a myriad of polymer-based projects at the Tata Institute of Fundamental Research, Mitsui Chemicals Inc, and the Spanish National Research Council. He is currently co-advised with the Langer Lab where he previously worked as a research assistant towards designing drug delivery hydrogels as part of his master's thesis research. In his free time, he enjoys playing the guitar, soccer and traveling.
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Simi Bright UROP
I am from Lagos, Nigeria. I am currently a sophomore majoring in chemical engineering and chemistry. I have previously worked in the Kulik Lab on optimizing nanoparticle structures and last summer I did research on stem cells for tissue engineering. I am excited to work on nanoparticles for drug delivery in the Johnson lab. In my free time I enjoy playing soccer, watching Netflix and mixing music as an amateur dj.
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Dr. Chris Brown Postdoctoral Associate
Chris was born and raised in Worcestershire, England. He moved to Newcastle for his MChem working for Dr. Lee Higham, where he made air-stable primary phosphines with a view to making safer precursors for catalysts such as DuPhos. Chris then flew over the pond to undertake his PhD with Prof. Michael Wolf at UBC in Vancouver, Canada. For his doctorate he synthesized a multitude of luminescent coordination complexes, in addition to moonlighting on research projects with a diving company and a local brewery. In August 2019 Chris joined the Johnson group, where he will switch his chemistry knowledge to polymeric materials. In his spare time he likes cooking, eating, hiking and cycling.
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Leticia Costa Graduate Student
Letícia grew up in Rio de Janeiro, Brazil. She moved to Middletown, CT to pursue her studies at Wesleyan University, where she majored in Chemistry. There she worked under Professor David Beveridge on computational modeling and molecule system comprehension research. The aim of the project was to understand the transduction of ligand binding energy into allosteric signal transmission in proteins. As an undergraduate, Letícia spent two summers at MIT, where she worked under Professor Jeremiah Johnson on the design and synthesis of novel poly(ethylene glycol)-based brush-arm star polymers. After this experience, she decided to pursue her graduate studies at MIT and to specialize in polymer chemistry. Aside from academics, Letícia enjoys traveling, eating ice cream, watching tv series, reading, and spending time with her friends.
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Yi Cui Visiting Undergraduate Student
Yi spent his happy childhood with family in Nanjing, a famous city which served as six dynasties in ancient China. He went to Jinling High School in 2014 where the free and democratic studying environment cultivated him a strong passion to natural science. He was admitted at age 16 to the Junior Class at the University of Science and Technology of China, and will receive a Bachelor's degree in Chemical Physics in 2020. His past research projects include investigating the active sites of Cu/ZnO in CO2 hydrogenation reaction and improving the safety of lithium battery with polymer electrolytes. Now he is excitedly working on the synthesis of bottlebrush and BASPs for drug delivery in the Johnson Group. He enjoys travelling in his free time. (This photo of Yi is from when he was travelling in Switzerland in 2018.)
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Yutong Dai UROP
Yutong was raised in Beijing, China, and moved to the U.S. during high school. She is currently a sophomore pursuing a Bachelor's degree in Chemistry. Last summer, she interned in Draper Laboratory, working on different projects, including developing a platform for rapid modification of polymers through a single-step click reaction. She is very excited to be working in the Johnson Lab on projects relating to polymers and modifications of them. In her free time, Yutong enjoys reading, listening to music, and traveling.
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Oscar Gonzalez Visting Undergraduate Student
I was born and raised in the Rio Grande Valley, which is a region in the southernmost part of Texas. I currently attend Texas A+M where I will be earning a B.S. in chemistry and a minor in physics and mathematics. I began doing research my freshman year of college under Dr. Meigan Aronson where I mainly synthesized nanocrystals, such as HfNiSn. Working in a laboratory sparked my interest in research so I decided to work under Dr. Sarbajit Banerjee after a semester in Dr. Aronson’s lab. In Dr. Banerjee’s lab I have worked on the synthesis of Mg nanowires via electrocrystallization, as well as the synthesis of hafnia by following a procedure similar to the Stöber process; both of these projects interested me because they have the potential to advance current technology. After taking Organic Chemistry I with Dr. David Bergbreiter I developed an interest in organic chemistry and found myself at the Johnson Group. In my free time I enjoy reading, watching documentaries, and playing board games.
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Yuwei Gu Graduate Student
I was raised in Ningbo, a beautiful coastal city in China. I received my B.S. in Chemical Biology from Tsinghua University (Beijing, China). In my undergraduate education, I worked in Prof. Huaping Xu’s lab synthesizing tellurium-containing polymers as drug-delivery vehicles (Believe it or not, they are actually quite bio-compatible!). In 2013, I took a summer research position in Prof. Steve Granick’s lab at University of Illinois at Urbana–Champaign, where I was trained as a polymer physicist and finally fell in love with polymer physics. In the Johnson group, I’m excited to explore uncharted territory at the interface between hydrogel chemistry, gelation physics, and even cell migration. Let’s wish me good luck.
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Dr. Manuel Hartweg Postdoctoral Associate
Manuel was born and raised in Germany. He obtained his B.Sc. in chemistry from the Karlsruhe Institute of Technology, Germany, in 2012, where he worked with Prof. Michael Meier. Afterwards, he completed his M.Sc. at the University of Marburg, Germany, working with Prof. Joerg Sundermeyer. During his masters, Manuel spent 4 months at Florida State University, USA, in the group of Prof. Tyler McQuade. In 2015, he started his PhD. at Queen Mary, University of London, UK, working with Dr. Remzi Becer on an industrial project. His research included not only the synthesis of polymeric materials based on a sustainable feedstock, but also the design of polymers for biological applications. Afterwards, Manuel joined the Johnson lab in Fall 2018, where he plans to continue working on synthesis of polymers for different applications. In his free time, Manuel enjoys all kind of sports, the outdoors and travelling.
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Dr. Megan Hill Postdoctoral Associate
Megan was born and raised in Salt Lake City, Utah before moving to Davis, California in later-youth. She obtained a B.S. in Chemistry from California Polytechnic State University in San Luis Obispo, CA and conducted polymer synthesis research in the group of Prof. Philip Costanzo (PJC4LYFE). Megan then traveled east across the nation to the ‘other sunshine state’ for graduate school at University of Florida. During her graduate degree, Megan worked in Prof. Brent Sumerlin’s group on the synthesis of stimuli-responsive and biodegradable polymers. Continuing her journey to the east, Megan then moved to Tokyo, Japan as a short-term JSPS Postdoctoral Fellow working on carbon-dioxide-based copolymers under Prof. Kyoko Nozaki. Megan joined Prof. Jeremiah Johnson’s group in June 2019 where she will be applying her polymer synthesis skills to solve problems in biology, energy, and catalysis. Outside of the lab, Megan enjoys hiking, yoga, scuba diving, and falling into music video wormholes on youtube.
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Yivan Jiang Graduate Student
I grew up in the town of Stow, MA famous for its apple farms. I got my BA in Biochemistry from Columbia University where I learned a great deal in the lab of Luis Campos. There, I developed an avid interest in polymer chemistry and its various applications in photovoltaics, energy storage, and gene transfection. Now, I'm excited to be a graduate student back in my home state of Massachusetts. In the Johnson group, I aim to further my understanding of macromolecular research through studying polymerization techniques and systems for drug delivery.
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Abe Herzog-Arbeitman Graduate Student
Abe grew up in Northampton, Massachusetts with his twin brother Jonah, before escaping the Northeast to attend the University of Chicago and become a "molecular engineer." While studying polyelectrolyte complexation dynamics with Dr. Matthew Tirrell, Abe realized that chemists are in fact the best at engineering molecules, and switched fields. Research stints at IBM Research with Dr. Jeannette García and at the Leibniz Institut für Festkörper und Werkstoffforschung Dresden with Dr. Daria Mikhailova lead him to the field of battery chemistry and its intersection with polymeric materials. Abe is excited to continue developing polymeric materials for energy storage and other applications with the Johnson Lab. When not in lab, Abe enjoys running, cooking, and eating spicy food.
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Keith Husted Graduate Student
I was raised in Oakville, Ontario and moved to the United States for graduate studies. I completed my Honours B.Sc. in Materials Chemistry at McGill University. I worked in the lab of Dr. Mark Andrews where I synthesized and characterized various morphologies of magnetite and lanthanide-doped magnetite nanoparticles, and monitored their impact on Rosenzweig instabilities of their respective high-concentration colloidal dispersions. I then worked under the co-supervision of Dr. Hanadi Sleiman and Dr. Dmitrii Perepichka on the synthesis and characterization alternating copolymers (oligomers) of diketopyrrolopyrroles. I am excited to continue my studies of polymer chemistry and extend my work to principles underlying control of network topology in the Johnson group at MIT.
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Khrystofor Khokhlov Graduate Student
Khrystofor was born and raised in Kiev, Ukraine, where he played ice hockey and did some oxazole chemistry research until he ended up as a chemistry major at Columbia University where he received his undergraduate education. He worked for a few years in the lab of Prof. Nuckolls, synthesizing perylene diimide-based twistacenes, helicenes and other contorted aromatics for applications in organic photovoltaics. Khrystofor just joined the Johnson group and is very excited to start working on IEG polymer synthesis and applications. He greatly enjoys reading and cooking, though objects of those activities tend to vary depending on whether he is in the lab or in the kitchen.
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Landon Kilgallon Graduate Student
Landon grew up in Spring Hill, Tennessee. He attended Rensselaer Polytechnic Institute in Troy, NY, where he received his BS in Chemistry. At Rensselaer, Landon worked in Dr. Chang Ryu’s laboratory where he studied the curing kinetics of the photoinitiated cationic polymerization of oxetanes and epoxides. He also spent a summer in Dr. Marcus Weck’s laboratory at New York University, where he studied the fundamentals of morphology control of multicompartment micelles synthesized using ROMP. Landon is continuing to pursue his research interests of polymer and materials chemistry in the Johnson Group. Outside of academics, Landon enjoys baking bread, making pizza, and building computers.
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Dr. Gavin Kiel Postdoctoral Associate
Gavin grew up in Orange Country, CA and then attended UCLA, where he studied economics and mathematics. After 2 years working in corporate banking, he ventured overseas to earn a masters degree in financial economics at Oxford University. He then focused his efforts on the logical next step: a PhD in chemistry. Prior to starting graduate school, he worked in Yi Liu's group at Lawrence Berkeley National Laboratory's Molecular Foundry on dynamic covalent chemistry approaches to interlocked cage compounds. Then, following his passion for synthesis, he went on to work with T. Don Tilley at UC Berkeley, where he developed a unified framework for synthesis of conjugated nanocarbons via metal-mediated [2+2+n] cycloadditions. He joined the Johnson group in Nov. 2019 to expand his synthetic skills into the macromolecular domain.
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Denise Kleinschmidt Visiting Graduate Student
Born and raised in a small city in Germany, Denise moved to Aachen, where she obtained her B.Sc. in chemistry in 2014 from RWTH Aachen. During her bachelor studies, she was engaged in research on polymers at CAT Catalytic Center at RWTH Aachen. Afterwards, she completed her M.Sc. at RWTH Aachen. During her masters, she conducted research on nanomaterials for applications in electrochemistry in the junior group of Adam Slabon, joined the group of Jeffrey Reimer at UC Berkeley as visiting scholar to explore the applications of nuclear magnetic resonance, and interned at BYK Additives & Instruments. In 2017, Denise started her PhD at DWI-Leibniz Institute for interactive Materials in Aachen working in the group of Andrij Pich. There, she focuses on the synthesis and characterization of polymeric microgels for catalytical applications. She joined the Johnson group at MIT in October 2019 as a visiting graduate student to develop her knowledge on the topology of polymeric networks. In her free time, Denise enjoys farming, cooking, painting, hiking and travelling.
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Dr. Samantha Kristufek Misrock Postdoctoral Fellow
Sam was raised in the countryside of Butler, PA and received her BS in chemistry from Penn State Behrend in 2011. During her undergraduate career, she conducted research synthesizing hypervalent iodine compounds under the direction of Dr. Michael Justik. Tired of the snowy weather, she moved to sunny Texas A&M University where she worked under the direction of Professor Karen Wooley on synthesis and characterization of phenolic linear and cross-linked polymers for various applications. Looking for adventure and another area of research, she moved to Australia for 1.5 years and worked as a postdoc in material science in the laboratory of Professor Frank Caruso at the University of Melbourne. In September 2018, she joined Professor Jeremiah Johnson’s group to work in the area of polymer synthesis towards biomedical applications. In her free time, Sam enjoys hiking, outdoor adventures, watching college football, and cooking.
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Dr. Jessica Lamb NIH Postdoctoral Fellow
Jessica grew up in Fargo, North Dakota and received her BS in Chemistry from the University of North Dakota in 2012. During her undergraduate career she worked on the solvent-free synthesis of organometallic compounds (cyclopalladated complexes) under Prof. Irina Smoliakova and conducted summer research in the Coatings and Polymeric Materials Department of North Dakota State University under Prof. Victoria Johnston-Gelling. She then moved to Cornell University for her graduate studies under Prof. Geoffrey Coates. There she worked on catalyst development, methodology, and mechanistic investigations of selective epoxide transformations using bimetallic catalysts, culminating in her PhD in 2017. She joined Prof. Jeremiah Johnson's group in August 2017 where she will study photo-mediated polymerizations and complex polymer architectures. Outside of lab she enjoys swing and ballroom dancing, crafts, reading, and photography.
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Valerie Lensch Graduate Student
Valerie grew up in Saratoga, California and attended the University of California, Santa Barbara where she received her B.S. in Chemistry and Biochemistry. At UCSB, Valerie conducted research with Professor Craig Hawker on the vulcanization of silicone networks using metal-free borane hydrosilylation. She also worked with Professor Samir Mitragotri on the development of platforms for targeted delivery of synergistic chemotherapy drug combinations. Valerie is now pursuing her doctoral studies at MIT under the guidance of Professor Jeremiah Johnson and Professor Laura Kiessling. In her free time, she enjoys hiking, running, and skating.
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Dr. Sipei Li Postdoctoral Scientist
Sipei was born and raised in Zhejiang Province, China. He received his Bachelor’s degree from Zhejiang University of Technology. He obtained Master’s degree from Zhejiang University under guidance of Prof. Chao Gao, where he focused on synthesis and functionalization of hyperbranched polymers. He then joined Prof. Krzysztof Matyjaszewski’s group at Carnegie Mellon University. He started his PhD career in the field of polymer/biomedicine, but later branched out to the field of energy storage in collaboration with Prof. Jay Whitacre at CMU. In 2020, he joined Prof. Jeremiah Johnson and Prof. Yang Shao-Horn research groups as a postdoctoral associate to continue his passion in the field of battery and energy storage.
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David Lundberg Graduate Student
I was born and raised in Minnesota and received my bachelor’s degree in Chemical Engineering from the University of Minnesota – Twin Cities. As an undergraduate I worked with Professor Chris Macosko on melt processing and rheological characterization of polymer-clay nanocomposites. Also, I worked with Professor Paul Dauenhauer on industrial process design for the production of renewable monomers and spent a summer at 3M modeling polymerization kinetics. I’m excited to join the Johnson group so that I can learn more about polymer chemistry and apply that knowledge to making functional network materials. When I’m not working I like to mountain bike, hike, and read
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Dr. Nate Oldenhuis NIH Postdoctoral Fellow
Nate was raised in the cultural hub that is Omaha, Nebraska. He obtained his bachelors degree in chemistry from the University of Iowa in 2012. During his undergraduate career, Nate worked with Prof. Hien Nguyen at Iowa, and spent his summers working with Prof. Steve Buchwald at M.I.T. During the completion of his Ph.D. at the University of California, Irvine, Nate worked as joint student with Prof. Zhibin Guan and Prof. Vy Dong. During his time there, he worked on creating organic materials using organometallic catalysis, drug delivery polymers, and making mechanical gradients. While in the Johnson lab, Nate plans to continue learning about polymers. In his free time Nate enjoys the outdoors, cooking, climbing, swimming in mostly blue water, and the color green.
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Matthew Pearson Graduate Student
I was born and raised in Louisville, Kentucky. I received my BS in Chemistry from Brown University, where I worked with Professor Eunsuk Kim, synthesizing biomimetic metal complexes for oxygen atom transfer chemistry, such as CO2 reduction. I also spent a summer at Brookhaven National Laboratory researching the suprisingly complex energetics of electron-hole separation in polymer-based organic photovoltaic cells. As a member of the Johnson group, I’m excited to apply my interests in inorganic and materials chemistry to bridging the gap between MOF chemistry and polymer chemistry by working toward developing a hybrid material that contains both MOF and polymer domains. Outside of the lab, I enjoy playing ragtime piano, backpacking, engaging in politics, and writing fiction.
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Peter Qin Graduate Student
I was born in China and received my BS in Chemical Biology from Tsinghua University in Beijing. As an undergrad I joined Prof. Xi Zhang's lab to work on superamolecular polymers based on cucurbiturils, spent a summer in Prof. Jeffrey Moore's lab in UIUC synthesizing pheyleneacetylene macrocycles, and built model airplanes that flew (and crashed). I am excited to join the Johnson group to work on IEG polymers. Outside of lab, I like travelling, taking photos, and fixing all kinds of stuff.
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Dr. Bo Qiao Postdoctoral Associate
Bo Qiao was born and raised in the city of Beijing, where he went to high school and college. After obtained his bachelor degree in Chemistry at Peking University (Beijing University) working with Prof. Dahui Zhao on the synthesis of phenylene ethynylene oligomers, Bo decided to move to a less crowded place. In 2012, he attended graduate school at Indiana University and joined Prof. Amar Flood’s research group. In Bloomington Indiana, a lovely college town in the Midwest, Bo spent 5 years studying anion supramolecular chemistry and obtained his PhD degree. In 2017, Bo joined MIT as a post-doctoral scientist co-advised by Prof. Yang Shao-Horn and Prof. Jeremiah Johnson studying Li conducting polymers.
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Dr. Peyton Shieh American Cancer Society Postdoctoral Fellow
Peyton grew up in Michigan, where he developed a love for autumn leaves and warm apple cider. He then studied chemistry at Harvard University, where he worked on the total synthesis of phorbol under the guidance of Professor David Evans. For his Ph.D., Peyton worked with Professor Carolyn Bertozzi at UC Berkeley on the development of responsive small-molecule fluorescent probes for applications in chemical biology and point-of-care diagnostics. After graduating, Peyton spent a bit over a year at Illumina in San Diego working on the surface chemistry of next-generation flowcells for high-throughput sequencing. Peyton is excited to return to Boston and to dive right in to studying the precision synthesis of responsive materials and their applications in biotechnology and medicine. In his free time, Peyton enjoys trying out new recipes, strumming on his guitar, and travelling. In particular, he is excited to explore Boston and the rest of New England, something that he neglected to do during his undergraduate years.
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Dr. Masamichi Shirakura Visiting Scientist
I was born and raised in Hyogo-prefecture, which is next to Osaka. I received my BS in chemistry from Doshisha University, and MS and PhD in Organometallic chemistry and Synthetic Organic Chemistry from Kyoto University. Then, I joined Otsuaka Pharmaceutical. I have been working as a medicinal chemist there for about 8 years. I have synthesized many bioactive small compounds.
I’m excited to start studying flow chemistry, polymers and nanomaterials. In my spare time, I love going shopping and traveling with my family, my wife and my daughter. I also like playing tennis and soccer, watching sports games, reading books and talking with my friends.
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Dr. Teruhiko Saito Visiting Scientist
Teruhiko received B.S. from the School of Engineering Science in Osaka University in 2009. After graduation, he joined the laboratory of Professor Kazushi Mashima where they developed new organometallic catalysts for organic transformations. Fortunately, he had chances to research as a visiting researcher under Prof. Jun Okuda of Aachen University, Germany and Prof. John Arnold of University of California, Berkeley. Upon completion of his Ph.D. in 2014, he joined Prof. Yoshiaki Nakao's group in the Graduate School of Engineering, Kyoto University as a doctoral researcher. In 2016, he assumed a position as an assistant professor of Osaka University, and he moved to his current position at Panasonic in fall. He started a collaborative research project with Prof. Jeremiah Johnson to develop gel-based catalysts for resource synthesis in 2018. In his free time, he enjoys shopping and travelling with his wife.
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Rebecca Sloan UROP
Born and raised in Cleveland, Ohio, Rebecca is currently a sophomore pursuing a Bachelors in a joint degree in chemistry and biology with a minor in polymers and soft matter. Last year, she UROPed in the Myerson Laboratory working on the Pharmacy on Demand project, testing the 3rd segment of the small-scale pharmaceutical manufacturing unit. She is very excited to be working in the Johnson Lab on projects at the intersection of her love for chemistry and biology. In her free time, Rebecca enjoys hiking, kickboxing, reading, and being a part of MIT CRU.
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Alexandra Sourakov Graduate Student
I grew up in the swamps of Florida, from whence I emerged to do my B.S. in Materials Science and Engineering at MIT. As an undergraduate, I worked in Professor Polina Anikeeva's lab optimizing the performance of magnetic iron oxide nanoparticles for neural stimulation. Through a summer internship at Formlabs (photopolymer 3D printing), I became interested in polymers. In order to learn more about polymer synthesis, I joined the Johnson Group as a UROP in my senior year. I look forward to delving into polymer chemistry and materials properties of polymer networks. Outside of lab, I like looking for arthropods, playing tennis, inspecting things under a microscope, and getting lost in libraries.
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Michael Stolberg Graduate Student
I grew up in Marin County, CA, just north of San Francisco. After becoming interested in science at an early age I attended UC Berkeley for undergrad. At Berkeley I majored in physics and minored in chemistry. I also conducted research under Ron Zuckermann at Lawrence Berkeley National Laboratory. There I studied crystal structures and phase transitions of peptoids, synthetic peptoid mimics. After spending most of my life in the Bay Area I decided to move elsewhere for graduate school, and am delighted to be at MIT. In the Johnson Group I study materials for polymeric batteries among other things. In my free time I am an avid skier, love cooking and watching Jeopardy!
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Zehao Sun Graduate Student
Zehao was born and raised in the city of Hangzhou, China, well-known for the great landscape of the West Lake. At the age of 18, he traveled to Beijing and spent four years there in Peking (also known as Beijing) University to obtain his bachelor's degree in materials chemistry. As an undergraduate student, he worked with Professor Jian Pei, who is famous for his obsession in cyclization reactions, on the synthesis of boron-nitrogen-embedded polycyclic aromatic hydrcarbons and explored their potential applications in the field of organic field-effect transistors. He is now pursuing a Ph.D. degree at MIT, coadvised by Professor Jeremiah Johnson and Professor Caroline Ross.
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Dr. Farrukh Vohidov Postdoctoral Scientist
I was raised in Dushanbe, the capital of mountainous Tajikistan. After getting involved in my high school chemistry club I became fascinated with chemistry and I was lucky to represent my country in a number of international chemistry Olympiads. I earned my BS in Chemistry from Fatih University in Istanbul, where I worked with Prof. Naz Agh-Atabay on synthesis of macrocyclic complexes of transition metals for antimicrobial applications. In fall of 2010 I began graduate school at Rice University, in Houston, Texas. Under the guidance of Prof. Zachary Ball I developed methods for catalytic protein modification, synthesized a class of luminogenic azide probes, and designed inhibitors of protein-protein interactions. I joined Prof. Jeremiah Johnson’s group in June 2016, where I am excited to have the opportunity to research novel polymer-based biomaterials and their application for drug delivery, biological imaging, and tissue engineering. Outside the lab I lead an active lifestyle, and I especially enjoy running and playing football. In my free time I like to work on my car and explore new places with my wife.
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Wencong Wang Graduate Student
I was raised in Weifang and received my B.S. from Tsinghua University in Beijing, China. I worked in Prof. Huaping Xu’s lab using radical polymerization to synthesize selenium-containing polymers as an undergraduate. In the summer of 2016, I did a summer research on synthesizing IEG polymers in Prof. Johnson’s lab. I’m excited to be back and explore more about IEG polymer and its application in biological systems. I spend my free time reading, listening to music and traveling.
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Hadiqa Zafar Graduate Student, NSF Fellow
Hadiqa spent her early years in Oakland, California, but moved to Austin, Texas as soon as she could. She stayed a stone’s throw from home to attend UT Austin and received her B.S. in Chemistry. She worked in Professor Jonathan Sessler’s lab where she learned expanded porphyrin synthesis with applications ranging from actinide complexation to theranostic studies. Applying synthesis for useful applications led her to become interested in polymer chemistry, and she hopes to continue that process in the Johnson group! In her free time she enjoys running, cycling, climbing, and hiking.
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Dr. Wenxu Zhang Postdoctoral Associate
I was born and raised in Hengyang, a small city in South China. In 2010, I traveled 20 hours by train to attend Zhejiang University, where I botained my bachelor's degree. After that, I moved to University of Massachusetts, Amherst to pursue my Ph.D. in the Department of Polymer Science and Engineering. Under the advisory of Prof. E. Bryan Coughlin, I synthesized ionic copolymers for anion transport materials using RAFT and ROMP, and also studied the self-assembly of high-chi block copolymers. Now I am super excited to have the oppurtunity to be a postdoctoral researcher in the Johnson group, working on novel polymers with high stability for energy applications. In my free time, I enjoy eating spicy food, watching soccer, and visiting museums as well as zoos. In addition, I like Bruce Wayne, Tony Stark, and Han Solo.
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Julia Zhao Graduate Student, NSF Fellow
Originally from Kansas City, Missouri, Julia earned a B.S. in chemistry and minored in biochemistry and cell biology at Rice University. As an undergraduate, she explored several areas of materials research, including single molecule spectroscopy and viral engineering at Rice as well as polymeric gene delivery as an Amgen scholar at UW. Julia also spent a summer as a visiting MPC CMSE intern at MIT, where she studied molecular defects in polymer networks in the Johnson and Olsen groups. She enjoyed the experience so much that she returned to MIT and the Johnson group to specialize in polymer chemistry as a graduate student. Julia spends her free time drawing, making music, and watching movies.
Department of Chemistry
Massachusetts Institute of Technology
77 Massachusetts Avenue, Room 18-296
Cambridge, MA 02139-4307 USA
Phone: (617) 253-1819
Email: jaj2109@mit.edu
Experience:
2018-current Associate Professor, Department of Chemistry Program in Polymers and Soft Matter Member, Koch Institute at MIT
Massachusetts Institute of Technology
2017-2018 Firmenich Career Development Associate Professor (with Tenure), Department of Chemistry Program in Polymers and Soft Matter Member, Koch Institute at MIT
Massachusetts Institute of Technology
2016-2017 Firmenich Career Development Associate Professor (w/o Tenure), Department of Chemistry and Program in Polymers and Soft Matter,
Massachusetts Institute of Technology
2015-2016 Firmenich Career Development Assistant Professor, Department of Chemistry and Program in Polymers and Soft Matter,
Massachusetts Institute of Technology
2011-2015 Assistant Professor, Department of Chemistry and Program in Polymers and Soft Matter,
Massachusetts Institute of Technology
2009-2011 Beckman Institute Postdoctoral Scholar with Professors Robert H. Grubbs and David A. Tirrell,
California Institute of Technology
2005-2007 Graduate research with Professor M.G. Finn,
The Scripps Research Institute, summers
2004-2009 Graduate research with Professors Nicholas J. Turro and Jeffrey T. Koberstein,
Columbia University
2001-2004 Undergraduate research with Karen L. Wooley,
Washington University in St. Louis
Education:
2009 Columbia University,
Ph. D., Chemistry
2004 Washington University in St. Louis, B.S.,
Biomedical Engineering and Chemistry
Awards and Honors:
2019 Blavatnik National Awards for Young Scientists Finalist
The New York Academy of Sciences and the Blavatnik Family Foundation
2019 Arthur C. Cope Scholar Award
American Chemical Society
2018 Biomacromolecules/Macromolecules Young Investigator Award
ACS Publications and the ACS Division of Polymer Chemistry
2018 Nobel Laureate Signature Award for Graduate Education in Chemistry
American Chemical Society
2018 School of Science Prize in Undergraduate Teaching
MIT
2018 Turner J. Alfrey Visiting Professorship
Michigan State University and the DOW Chemical Company
2016 Young Talent Award
China State Key Laboratory, 1st International Conference of Molecular Engineering of Polymers (MEP-1)
2015 People to Watch in the Kendall Square Biotech Hub
The Boston Globe
2014 CAREER Award
National Science Foundation
2014 DuPont Young Professor Award
DuPont
2014 3M Non-Tenured Faculty Award
3M
2014 Sloan Research Fellowship
Alfred P. Sloan Foundation
2014 Air Force Young Investigator Award
Air Force Office of Scientific Research
2014 PMSE Young Investigator
ACS Division of Polymeric Materials: Science and Engineering (PMSE)
2012 Junior Faculty Award
MIT Center for Materials Science and Engineering
2011 Thieme Chemistry Journal Award for New Faculty
Thieme Publishing Group
2009 Beckman Institute Postdoctoral Fellowship
Beckman Foundation and California Institute of Technology
2009 PhD Thesis Distinction
Columbia University
2009 Excellence in Graduate Polymer Research Award
American Chemical Society
2008 Hammett Award for Excellence in Graduate Research
Columbia University Department of Chemistry
2006 Division of Organic Chemistry Graduate Fellowship
ACS Division of Organic Chemistry
Publications:
88. A comonomer strategy for triggered degradation and re/upcycling of high-performance thermoset plastics
Shieh, P.; Zhang, W.; Husted, K. E. L.; Kristufek, S. L.; Xiong, B.; Lundberg, D. J.; Lem, J.; Veysset, D.; Sun, Y.; Nelson, K. A.; Plata, D. L.; Johnson, J. A.* ChemRxiv 2020, doi:10.26434/chemrxiv.11328242.v1.
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87. An N-heterocyclic carbene derived distonic radical cation
Gallagher, N. M.; Ye, H.-Z.; Feng, S.; Lopez, J.; Zhu, Y.; Van Voorhis, T.; Shao-Horn, Y.; Johnson, J. A.* Angew. Chem. Ind. Ed. 2020, doi:10.1002/anie.201915534.
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80. Modular polymer antigens to optimize immunity
Bennett, N. R.; Jarvis, C. M.; Murshid Alam, M.; Zwick, D. B.; Olson, J. M.; Nguyen, H. V.-T.; Johnson, J. A.; Cook, M. E.; Kiessling, L. L.* Biomacromolecules 2019, 20, 4370–4379.
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79. Antibody targeting of ultra-small nanoparticles enhances imaging sensitivity and enables longitudinal tracking of multiple myeloma
Detappe, A.; Reidy, M.; Yu, Y.; Mathieu, C.; Nguyen, H. V.-T.; Coroller, T. P.; Lam, F.; Jarolim, P.; Harvey, P.; Protti, A.; Nguyen, Q.-D.; Johnson, J. A.; Cremilleux, Y.; Tillement, O.; Ghobrial, I. M.*; Ghoroghchian, P. P.* Nanoscale 2019, 11, 20485–20496.
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77. BigSMILES: A structurally-based line notation for describing macromolecules
Lin, T.-S.; Coley, C. W.; Mochigase, H.; Beech, H. K.; Wang, W.; Wang, Z.; Woods, E.; Craig, S. L.; Johnson, J. A.; Kalow, J. A.; Jensen, K. F.; Olsen B. D.* ACS Cent. Sci. 2019, 5, 1523–1531.
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70. Revisiting the elasticity theory for real Gaussian phantom networks
Lin, T.-S.; Wang, R.; Johnson, J. A.; Olsen, B. D.* Macromolecules 2019, 52, 1685–1694.
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66. Triply loaded nitroxide brush-arm star polymers enable metal-free millimetric tumor detection by magnetic resonance imaging
Nguyen, H. V.-T.†; Detappe, A.†; Gallagher, N. M.; Zhang, H.; Harvey, P.; Yan, C.; Mathieu, C.; Golder, M. R.; Jiang, Y.; Ottaviani, M. F.; Jasanoff, A.; Rajca, A.; Ghobrial, I. M.; Ghoroghchian, P. P.*; Johnson, J. A.* ACS Nano 2018, 12, 11343–11354.
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63. Hot lithium-oxygen batteries charge ahead
Feng, S.; Lunger, J. R.; Johnson, J. A.; Shao-Horn, Y.* Science 2018, 361, 758.
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62. Reduction of liver fibrosis by rationally designed macromolecular telmisartan prodrugs
Golder, M. R.†; Liu, J.†; Andersen, J. N.; Shipitsin, M. V.; Vohidov, F.; Nguyen, H. V.-T.; Ehrlich, D. C.; Huh, S. J.; Vangamudi, B.; Economides, K. D.; Neenan, A. M.; Ackley, J. C.; Baddour, J.; Paramasivan, S.; Brady, S. W.; Held, E. J.; Reiter, L. A.; Saucier-Sawyer, J. K.; Kopesky, P. W.; Chickering, D. E.; Blume-Jensen, P.*; Johnson, J. A.* Nat. Biomed. Eng. 2018, 2, 822–830.
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61. Polymers at the interface with biology
Deming, T. J.*; Klok, H.-A.*; Armes, S. P.; Becker, M. L.; Champion, J. C.; Chen, E. Y.-X.; Heilshorn, S. C.; van Hest, J. C.-M.; Irvine, D. J.; Johnson, J. A.; Kiessling, L. L.; Maynard, H. D.; Olvera de la Cruz, M.; Sullivan, M. O.; Tirrell, M. V.; Anseth, K. S.; Lecommandoux, S.; Percec, S.; Zhong, Z.; Albertsson, A.C. Biomacromolecules 2018, 19, 3151–3162.
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58. Templated self-assembly of a PS-branch-PDMS bottlebrush copolymer
Cheng, L.; Gadelrab, K.; Kawamoto, K.; Yager, K.; Johnson, J. A.; Alexander-Katz, A.; Ross, C. A. Nano Lett. 2018, 18, 4360–4369.
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Selected Highlights: "Supramolecular polymers with a zwitterionic backbone." Synfacts 2018, 14, 0699.
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54. Scalable synthesis of multivalent macromonomers for ROMP
Nguyen, H. V.-T.; Gallagher, N. M.; Vohidov, F.; Jiang, Y.; Kawamoto, K.; Zhang, H.; Park, J. V.; Huang, Z.; Ottaviani, M. F.; Rajca, A.; Johnson, J. A.* ACS Macro Lett. 2018, 7, 472–476.
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Selected Highlights: "Paper of the month" Polymer Chemistry Blog. 2017, August 22nd.
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Selected Highlights: "New strategy produces stronger polymers" MIT News 2017, April 24th.
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39. Star polyMOCs with diverse structures, dynamics, and functions by three-component assembly
Wang, Y.; Gu, Y.; Keeler, E. G.; Park, J.; Griffin, R. G.; Johnson, J. A.* Angew. Chem. Int. Ed. 2017, 56, 188-192.
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38. Alkene metathesis-based polymerizations
Liu, J.; Johnson, J. A.* Science of Synthesis: N-Heterocyclic Carbenes in Catalytic Organic Synthesis 2016, 2, 99-126. (Book Chapter)
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Selected Highlights: "High-capacity nanoparticle" MIT News 2016, September 14th. ---------------------------------------------------------------------------------------------------------------------------------------
35. Polymer structure dependent hierarchy in polyMOC gels
Zhukhovitskiy, A. V.; Zhao, J.; Zhong, M.; Keeler, E. G.; Alt, E. A.; Teichen, P.; Griffin, R. G.; Hore, M. J. A.; Willard, A. P.; Johnson, J. A.* Macromolecules 2016, 49, 6896-6902. ---------------------------------------------------------------------------------------------------------------------------------------
33. Block co-polyMOCs by stepwise self-assembly
Wang, Y.; Zhong, M.; Park, J. V.; Zhukhovitskiy, A. V.; Johnson, J. A.* J. Am. Chem. Soc. 2016, 138, 10708-10715. ---------------------------------------------------------------------------------------------------------------------------------------
32. Iterative exponential growth synthesis and assembly of uniform diblock copolymers
Jiang, Y.; Golder, M. R.; Nguyen, H. V.-T.; Wang, Y.; Zhong, M.; Barnes, J. C.; Ehrlich, D. J. C.; Johnson, J. A.* J. Am. Chem. Soc. 2016, 138, 9369-9372. ---------------------------------------------------------------------------------------------------------------------------------------
26. Loops versus branch functionality in model click hydrogels
Kawamoto, K.; Zhong, M.; Wang, R.; Olsen, B. D.*; Johnson, J. A.* Macromolecules 2015, 48, 8980-8988.
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11. Brush-first and click: efficient synthesis of nanoparticles that degrade and release doxorubicin in response to light
Burts, A. O.; Liao, L.; Lu, Y. Y.; Tirrell, D. A.; Johnson, J. A.* Photochem. Photobiol. 2014, 90, 380-385.
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10. Particles without a box: brush-first synthesis of photodegradable PEG star polymers under ambient conditions
Liu, J.; Gao, A. X.; Johnson, J. A.* J. Vis. Exp. 2013, (80), e50874, DOI: 10.3791/50874
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9. Synthesis of model network hydrogels via tetrazine-olefin inverse electron demand Diels-Alder cycloaddition
Cok, A. M.; Zhou, H.; Johnson, J. A.* Macromol. Symp. 2013, 329, 108-112.
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8. Addressable carbene anchors for gold surfaces
Zhukhovitskiy, A. V.; Mavros, M. G.; Van Voorhis, T.; Johnson, J. A.* J. Am. Chem. Soc. 2013, 135, 7418-7421.
Selected Highlights:
"Carbene For Gold Surfaces" C&E News: News of the Week 2013, 91, 11. "A New Kind of Chemical Glue" MIT News 2013, May 29th.
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5. Application of 1H DOSY for facile measurement of polymer molecular weights
Li, W.; Chung, H.; Daeffler, C.; Johnson, J. A.*; Grubbs, R. H.* Macromolecules 2012, 45, 9595-9603.
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