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New Nanostructured TiO 2 for Direct Electrochemistry and Glucose Sensor Applications
Author(s) -
Bao ShuJuan,
Li Chang Ming,
Zang JianFeng,
Cui XiaoQiang,
Qiao Yan,
Guo Jun
Publication year - 2008
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200700728
Subject(s) - materials science , glucose oxidase , nanostructure , biosensor , nanotechnology , electrochemistry , biomolecule , hydrothermal circulation , porosity , carbon nanotube , fabrication , specific surface area , chemical engineering , electrode , composite material , catalysis , organic chemistry , chemistry , medicine , alternative medicine , pathology , engineering
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.