SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION OF SALMON DNA-WRAPPED SINGLE-WALL CARBON NANOTUBES

YUKI ASADA,HIROFUMI DOHI,SHOTA KUWAHARA,TOSHIKI SUGAI,RYO KITAURA,HISANORI SHINOHARA

NANO（2011）

Cited 12|Views12

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Abstract

Single-wall carbon nanotubes (SWNTs) can be well-dispersed in water by wrapping with short segments of natural DNA from salmon sperm. We report here the isolated DNA-wrapped SWNT hybrids. Measurements were carried out using UV-vis-NIR, near-infrared photoluminescence (PL) spectrum and atomic force microscopy (AFM). A possible charge transport between SWNTs and salmon-DNA is discussed in terms of observed spectral shifts in the photoluminescence spectra.

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Key words

single-wall carbon nanotubes,DNA,AFM analysis,photoluminescence spectra,pH dependence

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