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Electrodeposition study of ODN:SWCNT hybrids on gold substrates
Author(s) -
Lahiji Roya R.,
Dolash Bridget D.,
McDonald Jennifer,
Zemlyanov Dmitry,
Bergstrom Donald E.,
Reifenberger R.
Publication year - 2008
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200778153
Subject(s) - substrate (aquarium) , materials science , carbon nanotube , sonication , x ray photoelectron spectroscopy , chemical engineering , metal , casting , nanotechnology , evaporation , nuclear chemistry , chemistry , metallurgy , oceanography , physics , geology , engineering , thermodynamics
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)
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