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Year: | 2010 | ||||
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Type of Publication: | Article | ||||||
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Journal: | Langmuir | Volume: | 26 | ||||
Number: | 2 | Pages: | 613-617 | ||||
Month: | JAN 19 2010 | ||||||
Note: | PT: J; TC: 0; UT: WOS:000273403400001 |
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Abstract: | When pyrimidine-functionalized carbon nanotubes were incubated with single-stranded DNA ligase, formations of macroscopic aggregates were observed. Wet-cell transmission electron microscopy imaging revealed that the nanotubes were radially bound to form a 3D latticelike structure. These structures were not observed in control reactions lacking ligase or adenosine triphosphate. Raman spectroscopy analysis revealed no spectra indicative of carbon nanotubes in ligase-unamended controls; however, spectra were observed in radial breathing mode and in the G and G' bands in reactions containing ligase. Furthermore, the addition of deoxyribonuclease to the ligated reactions dispersed the aggregates, and a reduction in Raman spectral intensity was observed. |
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