Direct electrochemistry of glucose oxidase immobilized on porous carbon nanofiber/room temperature ionic liquid/chitosan composite film and its biosensing application

被引：9

作者：

Sheng, Qinglin ^{[1
]}

Liu, Ruixiao ^{[1
]}

Zheng, Jianbin ^{[1
]}

Lin, Wanghua ^{[2
]}

Li, Yuanyao ^{[2
]}

机构：

[1] NW Univ Xian, Inst Analyt Sci, Shaanxi Prov Key Lab Electroanalyt Chem, Xian 710069, Shaanxi, Peoples R China

[2] Natl Chung Cheng Univ, Dept Chem Engn, Chiayi 62102, Taiwan

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2012年 / 16卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Porous carbon nanofiber; Room-temperature ionic liquid; Glucose oxidase; Direct electrochemistry; Biosensor; DIRECT ELECTRON-TRANSFER; NANOTUBES; ENZYME; ELECTRODEPOSITION; LIQUIDS; NANOPARTICLES; CONSTRUCTION; FABRICATION; STABILITY; REDUCTION;

D O I：

10.1007/s10008-011-1420-x

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The direct electron transfer of glucose oxidase (GOD) immobilized on a composite matrix based on porous carbon nanofibers (PCNFs), room-temperature ionic liquid (RTIL), and chitosan (CHIT) underlying on a glassy carbon electrode was achieved. The combination of the PCNFs, RTIL, and CHIT provided a suitable microenvironment for GOD to transfer electron directly. In deaerated buffer solutions (pH 7.0), the cyclic voltammetry of the GOD/PCNFs/RTIL/CHIT composite films showed a pair of well-defined redox peaks with the formal potential of -0.45 V (vs. SCE). The synergistic effort of the PCNFs, RTIL, and CHIT also promoted the stability of GOD in the composite film and retained its bioactivity.

引用

页码：739 / 745

页数：7

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