Electrodeposition study of ODN : SWCNT hybrids on gold substrates

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Physica Status Solidi a-Applications and Materials Science 205,6 (2008) 1408-1411;


Sonication of short single-stranded DNA (oligodeoxyribonucleotide; ODN) with Single-Walled Carbon Nanotubes (SWCNTs) greatly facilitates the dispersion of SWCNTs from entangled ropes in an aqueous solution, creating ODN: SWCNT hybrids. Electrodeposition has been investigated to determine if well-dispersed ODN:SWCNT hybrids on a metal substrate can be created. Preliminary studies indicate that electrodeposition using an An substrate held at + 0.5 V produces ODN: SWCNT hybrids that are uniformly deposited across the An substrate. This result can be compared to samples produced by drop casting and evaporation techniques which yield a thick tangled mat of ODN: SWCNT hybrids across the substrate. The resulting electrodeposited samples were characterized using Scanning Probe Microscope (SPM) and X-ray Photoemission Spectroscopy (XPS) techniques. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Materials Science, Multidisciplinary;; Physics, Applied;; Physics, ;; Condensed Matter

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