Case 12940

Bactericidal Nanofibers


Antibacterial fiber, bactericidal, antibacterial polymer, water treatment, air treatment


Sterilizers, sanitizers, disinfectants, sporicides, virucides, air filtration/cleaning, protective fabrics, protective clothing


The current method of treating surfaces to make them antimicrobial is generally limited to materials that are activated and modified after processing, limiting their applicability and also limited by available surface area and amount of active agent that can be loaded on surface.


This invention presents the technology to manufacture electrospun fiber meshes containing the biocide chlorhexidine (or similar), incorporated within and/or bound onto the surfaces of the fibers to obtain bactericidal membranes, intended for the use in protective fabrics or antibacterial filtration media. Because of the small diameter and high surface area of the fibers employed, the total amount of active agent presented is significantly greater than with existing fabrics. The small sizes of fibers and pores significant increase the filtration efficiency and reduce the penetration of particles and aerosols in air cleaning applications.


Perform effective bactericidal action by providing a lethal, irreversible action resulting in partial or complete microbial cell destruction or incapacitation.


Intellectual Property:

WO Patent Application US08/083208 filed on November 12, 2008

US Patent Application 12/741478 filed on November 12, 2008


L. Chen, L.E. Bromberg, T.A. Hatton, G.C. Rutledge, “Electrospun cellulose acetate fibers containing chlorhexidene as a bactericide” Polymer 2008, 49, 1266-1275.

Last revised: August 24, 2011

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