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Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection

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Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection

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Title: Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection
Author: Zeng, Zhiyuan; Zhou, Xiaozhu; Huang, Xiao; Wang, Zhijuan; Yang, Yanli; Zhang, Qichun; Boey, Freddy Yin Chiang; Zhang, Hua
Copyright year: 2010
Abstract: Single-walled carbon nanotube (SWCNT) microarrays are successfully patterned on SiO2 substrates based on an evaporation-induced self-assembly mechanism. On these SWCNT micropatterns, the highly electroactive polycrystalline Pt nanoparticles (PtNPs) are deposited by using the electrochemical method. The obtained PtNP-SWCNT nanocomposites exhibit a low detection limit for hydrogen peroxide (4 µM). The further investigation on a glucose oxidase (GOx)/BSA/PtNP-SWCNT based biosensor indicates that the detection limit and sensitivity for glucose are 0.04 mM and 4.54 µA mM^-1 cm^-2, respectively. Our results prove that the improved electrocatalytic activity originates from the PtNP-SWCNT micropatterns, which provide a potential platform to immobilize different enzymes used for bioelectrochemical applications.
Subject: DRNTU::Engineering::Materials.
Type: Journal Article
Series/ Journal Title: Analyst
School: School of Materials Science and Engineering
Rights: © 2010 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Analyst, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1039/c000316f.
Version: Accepted version

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