Non-enzymatic amperometric detection of hydrogen peroxide in human blood serum samples using a modified silver nanowire electrode

被引：33
|
作者：
Thirumalraj, Balamurugan [1 ]
Zhao, Duo-Han [1 ]
Chen, Shen-Ming [1 ]
Palanisamy, Selvakumar [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Electroanal & Bioelectrochem Lab, 1,Sect 3,Chung Hsiao East Rd, Taipei 106, Taiwan
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2016年 / 470卷
关键词：
Silver nanowires; Screen printed carbon electrode; Hydrogen peroxide; Non-enzymatic sensor; AG NANOPARTICLES; DIRECT ELECTROCHEMISTRY; SUBSEQUENT DECORATION; GLUCOSE BIOSENSOR; RAPID SYNTHESIS; GRAPHENE; SENSOR; OXIDE; H2O2; HEMOGLOBIN;
D O I：
10.1016/j.jcis.2016.02.049
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, we report a highly sensitive amperometric H2O2 sensor based on silver nanowires (AgNWs) modified screen printed carbon electrode. The AgNWs were synthesized using polyol method. The synthesized AgNWs were characterized by scanning electron microscopy, UV-vis spectroscopy and X-ray diffraction techniques. The average diameter and length of the synthesized AgNWs were found as 86 5 and 385 nm, respectively. Under optimum conditions, the AgNWs modified electrode shows a stable amperometric response for H2O2 and was linear over the concentrations ranging from 0.3 to 704.8 mu M. The non-enzymatic sensor showed a high sensitivity of 662.6 mu A mM(-1) cm(-2) with a detection limit of 29 nM. The response time of the sensor was found as 2 s. Furthermore, the AgNWs modified electrode exhibited a good recovery of H2O2 (94.3%) in the human blood serum samples. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：117 / 122
页数：6
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