Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO<sub>2</sub>

WU Xinbing; MENG Meng; ZHUANG Wei; LÜ Linghong; LU Xiaohua

doi:10.3969/j.issn.0438-1157.2014.05.031

您当前的位置：

首页 >

文章列表页 >

Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO₂

更新时间：2025-12-10

- Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO₂
- CIESC Journal Issue 5, (2014)
- 作者机构：
  
  南京工业大学材料化学工程国家重点实验室,江苏,南京,210009
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.05.031
  CLC： 647.32TB383
- Online First：05 May 2014，
  
  Published：05 May 2014
- 稿件说明：
移动端阅览
WU Xinbing, MENG Meng, ZHUANG Wei, et al. Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO₂[J]. CIESC Journal, 2014, (5). DOI: 10.3969/j.issn.0438-1157.2014.05.031.
DOI：

WU Xinbing, MENG Meng, ZHUANG Wei, et al. Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO₂[J]. CIESC Journal, 2014, (5). DOI: 10.3969/j.issn.0438-1157.2014.05.031. DOI：

摘要

采用非模板软化学法制备了一种孔径均一的介孔TiO2材料（m-TiO2）。XRD测试结果表明其晶型为锐钛矿，且结晶度高，通过N2吸-脱附曲线可看出存在规整的介孔结构且具有高比表面，从FESEM和TEM可以看出制备的m-TiO2由许多纳米粒子构成微米级大颗粒，且存在均匀分布的介孔。将此种TiO2材料固定化葡萄糖氧化酶（GOx）后，通过红外光谱（FT-IR）分析可知m-TiO2材料可以有效固定化GOx。将m-TiO2作为固定化材料固定化GOx制备成Nafion/GOx/m-TiO2/GC电极并进行相关电化学测试，测试结果表明m-TiO2作为固定化材料固定化GOx后具有良好的催化活性，在无电子媒介体存在下能够实现反应电子与电极表面的直接电子传递，检测线性范围为0.1～1.2 mmol·L-1葡萄糖，灵敏度为3.44μA·mmol-1·L·cm-2，在葡萄糖传感领域具有良好的应用前景。

Abstract

A novel mesoporous TiO2 material (m-TiO2) was obtained by a soft chemistry method in the absence of any surfactants or templates. It was shown that the m-TiO2 had an anatase crystalline structure with well-distributed mesopores from XRD

N2 adsorption-desorption isotherms

FESEM and TEM. The FT-IR results indicated that glucose oxidase (GOx) could be well immobilized on m-TiO2. The electrochemical tests of the fabricated Nafion/GOx/m-TiO2 modified glass carbon electrode (GCE) showed fast direct electron transfer between GOx molecules and electrode surface

exhibiting a linear response to glucose concentration ranging from 0.1 to 1.2 mmol·L-1

and good sensitivity of 3.44 μA·mmol-1·L·cm-2

which proved that the novel m-TiO2 was a promising material for immobilization of GOx and fabrication of glucose biosensors.

关键词

Keywords

references

Views

758

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research progress on the H+/Zn2+ interfacial transport regulation and reaction mechanisms in aqueous Zn/MnO2 system

Characterization and oxygen evolution reaction performance of La2Ti2O7 synthesized by emulsion explosive detonation

Research progress of latent fingerprint optical visualization technology based on aggregation induced emission materials

Cu cation vacancies enhance the lithium storage performance of perovskite-type high-entropy oxides

Advances in thermal management of lithium-ion batteries

Related Author

CAO Lei

XU Zixiao

XU Chenxuan

SHAO Zhuo

JI Shiyu

WANG Quan

BAO Chunhui

ZHU Qunlong

Related Institution

PowerChina Huadong Engineering Corporation Limited

School of Chemical Engineering and Blasting, Anhui University of Science and Technology

School of Safety Science and Engineering, Anhui University of Science and Technology

School of Investigation, People’s Public Security University of China

TianJin Public Security Profession College

⁰

Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO2

DOI：10.3969/j.issn.0438-1157.2014.05.031

摘要

Abstract

关键词

Keywords

references

Direct electrochemistry of glucose oxidase immobilized on mesoporous TiO₂