Novel H2O2 electrochemical sensor based on graphene-polyacrylamide composites

被引：11
|
作者：
Xie, A. -J. [1 ]
Liu, Q. -X. [2 ]
Ge, H. -L. [1 ]
Kong, Y. [1 ]
机构：
[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China
[2] Changzhou Coll Informat Technol, Sci & Technol Dept, Changzhou 213164, Peoples R China
来源：
MATERIALS TECHNOLOGY | 2015年 / 30卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Graphene; Polyacrylamide; H2O2; Electrochemical sensor; HORSERADISH-PEROXIDASE; FILMS; OXIDE; BIOSENSORS; HYBRID;
D O I：
10.1179/1753555714Y.0000000203
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A sensitive and selective H2O2 electrochemical sensor based on graphene-polyacrylamide (G-PAM) composites was developed. Graphene (G) was synthesised via the electrochemical reduction of graphene oxide, and then PAM films were electrosynthesised on G modified glassy carbon electrode to prepare G-PAM. A novel H2O2 sensor was obtained by immobilising horseradish peroxidase (HRP) into the G-PAM via the hydrogen bonding between PAM and HRP. The as prepared H2O2 sensor exhibited high sensitivity, selectivity and reproducibility in the determination of H2O2, which was attributed to the introduction of G to this sensor. Also in this paper, the apparent Michaelis-Menten constant of HRP was calculated.
引用
收藏
页码：50 / 53
页数：4
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