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Issue 7, 2010
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Electrochemical deposition of Ptnanoparticles on carbon nanotube patterns for glucose detection

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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.

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

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Supplementary files

Article information


Submitted
08 Jan 2010
Accepted
07 Apr 2010
First published
30 Apr 2010

Analyst, 2010,135, 1726-1730
Article type
Paper

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

Z. Zeng, X. Zhou, X. Huang, Z. Wang, Y. Yang, Q. Zhang, F. Boey and H. Zhang, Analyst, 2010, 135, 1726
DOI: 10.1039/C000316F

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