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

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xiaozhu Zhou
  • Xiao Huang
  • Zhijuan Wang
  • Yanli Yang
  • Qichun Zhang
  • Freddy Boey

Detail(s)

Original languageEnglish
Pages (from-to)1726-1730
Journal / PublicationAnalyst
Volume135
Issue number7
Online published30 Apr 2010
Publication statusPublished - 1 Jul 2010
Externally publishedYes

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. © 2010 The Royal Society of Chemistry.

Citation Format(s)

Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection. / Zeng, Zhiyuan; Zhou, Xiaozhu; Huang, Xiao; Wang, Zhijuan; Yang, Yanli; Zhang, Qichun; Boey, Freddy; Zhang, Hua.

In: Analyst, Vol. 135, No. 7, 01.07.2010, p. 1726-1730.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal