Electrodeposition study of ODN:SWCNT hybrids on gold substrates

✍ Scribed by Lahiji, Roya R. ;Dolash, Bridget D. ;McDonald, Jennifer ;Zemlyanov, Dmitry ;Bergstrom, Donald E. ;Reifenberger, R.

• Book ID: 105364829
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 454 KB
• Volume: 205
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200778153

✦ Synopsis

Abstract

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 Au substrate held at +0.5 V produces ODN:SWCNT hybrids that are uniformly deposited across the Au 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. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)