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|Title:||Electrochemical genosensing properties of gold nanoparticle-carbon nanotube hybrid||Authors:||Lim, S.H.
|Issue Date:||21-Dec-2004||Citation:||Lim, S.H., Wei, J., Lin, J. (2004-12-21). Electrochemical genosensing properties of gold nanoparticle-carbon nanotube hybrid. Chemical Physics Letters 400 (4-6) : 578-582. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cplett.2004.11.023||Abstract:||We have investigated the electrochemical genosensing properties of gold nanoparticle-carbon nanotube hybrid. Thiolated oligonucleotide probes and mercaptohexanol were self-assembled onto the Au-CNT hybrid. The hybridization events of target oligonucleotides are monitored using electrochemical impedance spectroscopy, cyclic voltammetry and a.c. voltammetry techniques. A redox-active mediator Ru(bpy) 3 2+ is used to detect the oxidation of guanine residues. The as-fabricated genosensor is able to differentiate between complementary and mismatched hybridizations, relying on the oxidation current of the guanine residues mediated via Ru(bpy) 3 2+. © 2004 Elsevier B.V. All rights reserved.||Source Title:||Chemical Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/96402||ISSN:||00092614||DOI:||10.1016/j.cplett.2004.11.023|
|Appears in Collections:||Staff Publications|
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