Immobilization and direct electrochemistry of glucose oxidase on a tetragonal pyramid-shaped porous ZnO nanostructure for a glucose biosensor

2009 ◽  
Vol 24 (5) ◽  
pp. 1286-1291 ◽  
Author(s):  
Zhihui Dai ◽  
Guojian Shao ◽  
Jianmin Hong ◽  
Jianchun Bao ◽  
Jian Shen
Keyword(s):  
Glucose Oxidase ◽  
Direct Electrochemistry ◽  
Glucose Biosensor ◽  
Tetragonal Pyramid ◽  
Zno Nanostructure

A TiO2–SnS2 nanocomposite as a novel matrix for the development of an enzymatic electrochemical glucose biosensor

2019 ◽  
Vol 43 (42) ◽  
pp. 16748-16752 ◽  
Author(s):  
Pei Yao ◽  
Suhua Yu ◽  
Huifang Shen ◽  
Juan Yang ◽  
Lingfeng Min ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Direct Electrochemistry ◽  
Glucose Biosensor ◽  
First Time

A TiO2–SnS2 nanocomposite was prepared and for the first time used to construct a novel electrochemical enzymatic glucose biosensor based on the direct electrochemistry of glucose oxidase (GOx).

Direct electrochemistry of glucose oxidase immobilized on ZrO2 nanoparticles-decorated reduced graphene oxide sheets for a glucose biosensor

RSC Advances ◽  
2014 ◽  
Vol 4 (57) ◽  
pp. 30358-30367 ◽  
Author(s):  
A. T. Ezhil Vilian ◽  
Shen-Ming Chen ◽  
M. Ajmal Ali ◽  
Fahad M. A. Al-Hemaid
Keyword(s):  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Direct Electrochemistry ◽  
Glucose Biosensor ◽  
Preparation Procedure ◽  
Zro2 Nanoparticles ◽  
Schematic Representation ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Schematic representation of the preparation procedure of GOx–PLL/RGO–ZrO2 composite.

Enhanced Direct Electrochemistry of Glucose Oxidase and Glucose Biosensing Based on TiO2-Decorated Graphene Nanohybrids

2012 ◽  
Vol 496 ◽  
pp. 507-510 ◽  
Author(s):  
Jun Wu ◽  
Qian Liu ◽  
Kun Wang ◽  
Jian Rong Cai
Keyword(s):  
Glucose Oxidase ◽  
Direct Electron Transfer ◽  
Direct Electrochemistry ◽  
Synergetic Effect ◽  
Glucose Biosensor ◽  
Reduced Form ◽  
Glucose Determination ◽  
Glucose Biosensing ◽  
Linear Concentration Range ◽  
Linear Concentration

Using TiO2-decorated graphene (TiO2-G) nanohybrids as the immobilized platform for redox protein, and selecting glucose oxidase (GOD) as model enzyme, the direct electrochemistry of GOD was investigated in this paper. By virtue of the synergetic effect between graphene and TiO2 nanoparticles, the direct electron transfer of GOD on the TiO2-G nanohybrids modified electrode was remarkably promoted with a rate constant of 3.24 s-1. Moreover, based on the decrease of the electrocatalytic response of the reduced form of GOD by dissolved oxygen, a glucose biosensor was developed, which showed a satisfactory analytical performance for glucose determination over an acceptable linear concentration range from 5×10−4 to 2×10−2 mol/L. All these results demonstrated the great significance of such TiO2-G nanohybrids for the immobilization of enzyme and other biomolecules.

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