New Nanostructured TiO 2 for Direct Electrochemistry and Glucose Sensor Applications

A new, slack, and uniformly porous TiO 2 material is synthesized by a simple, carbon nanotube (CNT) template‐assisted hydrothermal method and is further explored for protein immobilization and biosensing. Results demonstrate that the material has a large specific surface area and a unique nanostruct...

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Bibliographic Details
Published in:Advanced functional materials 2008-02, Vol.18 (4), p.591-599
Main Authors: Bao, Shu‐Juan, Li, Chang Ming, Zang, Jian‐Feng, Cui, Xiao‐Qiang, Qiao, Yan, Guo, Jun
Format: Article
Language:English
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Summary:A new, slack, and uniformly porous TiO 2 material is synthesized by a simple, carbon nanotube (CNT) template‐assisted hydrothermal method and is further explored for protein immobilization and biosensing. Results demonstrate that the material has a large specific surface area and a unique nanostructure with a uniform pore‐size distribution. Glucose oxidase (GOD) immobilized on the material exhibits facile, direct electrochemistry and good electrocatalytic performance without any electron mediator. The fabricated glucose oxidase sensor shows good stability and high sensitivity, which indicates that the slack porous TiO 2 is an attractive material for use in the fabrication of biosensors, particularly enzymatic sensors, because of its direct electrochemistry, high specific surface area, and unique nanostructure for efficient immobilization of biomolecules.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.200700728