Optical characterization of DNA-wrapped single walled carbon nanotubes irradiated with ultraviolet light.

J Nanosci Nanotechnol

SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Korea.

Published: October 2008

AI Article Synopsis

  • The study examined how different exposure times to ultraviolet (UV) light affect single-walled carbon nanotubes (SWNTs) that are wrapped in single-strand DNA (ssDNA).
  • The researchers used absorption and Raman spectroscopy to measure changes in the properties of these nanotubes after UV exposure.
  • Results showed that the absorbance of the ssDNA-wrapped SWNTs decreased, and those wrapped with a specific type of ssDNA (polyd(T)) tended to clump together when exposed to UV light.

Article Abstract

We have investigated the effect of ultraviolet irradiation exposure time on single walled carbon nanotubes (SWNTs) wrapped with single-strand DNA (ssDNA) using absorption spectroscopy and Raman spectroscopy. The absorbance value of ssDNA-wrapped SWNTs in aqueous media was found to be decreased, where as SWNTs wrapped with ssDNA with polyd(T) were aggregated under UV irradiation.

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http://dx.doi.org/10.1166/jnn.2008.1134DOI Listing

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