Platinum decorated carbon nanotubes for highly sensitive amperometric glucose sensing

被引：68

作者：

Xie, Jining ^{[1
]}

Wang, Shouyan ^{[1
]}

Aryasomayajula, L. ^{[1
]}

Varadan, V. K. ^{[1
]}

机构：

[1] Univ Arkansas, Coll Engn, Dept Elect Engn, Nanomat Res Lab, Fayetteville, AR 72701 USA

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 06期

关键词：

D O I：

10.1088/0957-4484/18/6/065503

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fine platinum nanoparticles (1-5 nm in diameter) were deposited on functionalized multi-walled carbon nanotubes (MWNTs) through a decoration technique. A novel type of enzymatic Pt/ MWNTs paste-based mediated glucose sensor was fabricated. Electrochemical measurements revealed a significantly improved sensitivity (around 52.7 mu AmM-1 cm(-2)) for glucose sensing without using any picoampere booster or Faraday cage. In addition, the calibration curve exhibited a good linearity in the range of 1 - 28 mM of glucose concentration. Transmission electron microscopy (TEM) and x-ray photoelectron spectroscopy (XPS) were performed to investigate the nanoscale structure and the chemical bonding information of the Pt/ MWNTs paste-based sensing material, respectively. The improved sensitivity of this novel glucose sensor could be ascribed to its higher electroactive surface area, enhanced electron transfer, efficient enzyme immobilization, unique interaction in nanoscale and a synergistic effect on the current signal from possible multi-redox reactions.

引用

页数：9

共 40 条

[1]

Bard A. J., 2001, ELECTROCHEMICAL METH, P44

[2] Electrocatalytic properties of platinum particles incorporated with polypyrrole films in D-glucose oxidation in phosphate media [J].

Becerik, I ;

Kadirgan, F .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 436 (1-2) :189-193

[3] Electrochemically mediated electrodeposition/electropolymerization to yield a glucose microbiosensor with improved characteristics [J].

Chen, XH ;

Matsumoto, N ;

Hu, YB ;

Wilson, GS .

ANALYTICAL CHEMISTRY, 2002, 74 (02) :368-372

[4] Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: a strong electrocatalyst for glucose oxidation [J].

Cui, Hui-Fang ;

Ye, Jian-Shan ;

Liu, Xiao ;

Zhang, Wei-De ;

Sheu, Fwu-Shan .

NANOTECHNOLOGY, 2006, 17 (09) :2334-2339

[5] Determination of the biomolecular composition of an enzyme-polymer biosensor [J].

Griffith, A ;

Glidle, A ;

Beamson, G ;

Cooper, JM .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (11) :2092-2100

[6] Glucose biosensor based on multi-wall carbon nanotubes and screen printed carbon electrodes [J].

Guan, WJ ;

Li, Y ;

Chen, YQ ;

Zhang, XB ;

Hu, GQ .

BIOSENSORS & BIOELECTRONICS, 2005, 21 (03) :508-512

[7] Direct electron transfer of glucose oxidase on carbon nanotubes [J].

Guiseppi-Elie, A ;

Lei, CH ;

Baughman, RH .

NANOTECHNOLOGY, 2002, 13 (05) :559-564

[8] Electrochemical oxidation of hydrogen peroxide at platinum electrodes. Part II: effect of potential [J].

Hall, SB ;

Khudaish, EA ;

Hart, AL .

ELECTROCHIMICA ACTA, 1998, 43 (14-15) :2015-2024

[9] Electrochemical oxidation of hydrogen peroxide at platinum electrodes. Part 1. An adsorption-controlled mechanism [J].

Hall, SB ;

Khudaish, EA ;

Hart, AL .

ELECTROCHIMICA ACTA, 1998, 43 (5-6) :579-588

[10] Electrochemical oxidation of hydrogen peroxide at platinum electrodes. Part IV: phosphate buffer dependence [J].

Hall, SB ;

Khudaish, EA ;

Hart, AL .

ELECTROCHIMICA ACTA, 1999, 44 (25) :4573-4582

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