Accession Number:

ADA513373

Title:

Enzyme-Mediated Assimilation of DNA-Functionalized Single-Walled Carbon Nanotubes

Descriptive Note:

Journal article

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL

Report Date:

2010-01-01

Pagination or Media Count:

6.0

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.

Subject Categories:

  • Refractory Fibers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE