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Carbon Nanotubes Fed on “Carbs”: Coating of Single-Walled Carbon Nanotubes by Dextran Sulfate

✍ Scribed by Nalinikanth Kotagiri; Jin-Woo Kim

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
578 KB
Volume
10
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

A facile and easily reproducible technique for assembling biohybrid nanoparticles is a core feature that is highly desired for biomedical applications, considering the nature and limited lifespan of the biopolymers used. Here we show a simple and effective method to enfold single‐walled carbon nanotubes (SWNTs) using an anionic polysaccharide, dextran sulfate. After their interactions, SWNTs were rendered dispersible in aqueous solution and were shortened and unbundled to their basic dimension. Atomic force microscopy analysis was extensively employed to elucidate the mechanism of their interfacing. This biohybrid nanoparticle holds promise for biological and biomedical applications due to the synergistic unique properties of SWNTs and dextran sulfate.

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