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

Zhiyuan Zeng; Xiaozhu Zhou; Xiao Huang; Zhijuan Wang; Yanli Yang; Qichun Zhang; Freddy Boey; Hua Zhang

doi:10.1039/c000316f

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

Zhiyuan Zeng, Xiaozhu Zhou, Xiao Huang, Zhijuan Wang, Yanli Yang, Qichun Zhang, Freddy Boey, Hua Zhang

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

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.

Original language	English
Pages (from-to)	1726-1730
Number of pages	5
Journal	The Analyst
Volume	135
Issue number	7
DOIs	https://doi.org/10.1039/c000316f
State	Published - Jul 2010
Externally published	Yes

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title = "Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection",

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.",

author = "Zhiyuan Zeng and Xiaozhu Zhou and Xiao Huang and Zhijuan Wang and Yanli Yang and Qichun Zhang and Freddy Boey and Hua Zhang",

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TY - JOUR

T1 - Electrochemical deposition of Pt nanoparticles on carbon nanotube patterns for glucose detection

AU - Zeng, Zhiyuan

AU - Zhou, Xiaozhu

AU - Huang, Xiao

AU - Wang, Zhijuan

AU - Yang, Yanli

AU - Zhang, Qichun

AU - Boey, Freddy

AU - Zhang, Hua

PY - 2010/7

Y1 - 2010/7

N2 - 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.

AB - 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.

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

Abstract

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