Ag nanoparticles self-supported on Ag2V4O11 nanobelts: Novel nanocomposite for direct electron transfer of hemoglobin and detection of H2O2

被引：27

作者：

Lu, Chunliang ^{[1
]}

Shen, Qingming ^{[1
,2
]}

Zhao, Xiaomei ^{[2
]}

Zhu, Junjie ^{[2
]}

Guo, Xuefeng ^{[1
]}

Hou, Wenhua ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Mesoscop Chem MOE, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Key Lab Analyt Chem Life Sci MOE, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 150卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Nanocomposite; Ag; Ag2V4O11; Hemoglobin; Biosensor; H2O2; detection; SOL-GEL NETWORK; SILVER NANOPARTICLES; DIRECT ELECTROCHEMISTRY; CARBON NANOTUBE; HORSERADISH-PEROXIDASE; SURFACE SEGREGATION; GOLD NANOPARTICLES; LITHIUM BATTERIES; GLUCOSE-OXIDASE; COMPOSITE FILM;

D O I：

10.1016/j.snb.2010.07.016

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nanocomposite of Ag nanoparticles self-supproted on Ag2V4O11 nanobelts, prepared by gamma-ray irradiation treatments of Ag2V4O11 nanobelts, was used to immobilize hemoglobin on glassy carbon electrode Detailed electrochemical analysis was performed and it was found that Ag/Ag2V4O11 nanocomposite significantly improved the direct electron transfer between hemoglobin and glassy carbon electrode, leading to the fabrication of a biosensor with a very sensitive detection of H2O2 The apparent surface concentration (Gamma*) of hemoglobin and the electron transfer rate constant (k(s)) were calculated to be 16 x 10(-10) mol/cm(2) and 26s(-1), respectively The linear detection range of H2O2 was 10-120 mu M, with a detection limit of 03 mu M (C) 2010 Elsevier B V. All rights reserved

引用

页码：200 / 205

页数：6

共 48 条

[1] Synthesis and electrical transport of novel channel-structured β-AgVO3 [J].

Bao, Shu-Juan ;

Bao, Qiao-Liang ;

Li, Chang-Ming ;

Chen, Tit Pei ;

Sun, Chang-Qing ;

Dong, Zhi-Li ;

Gan, Ye ;

Zhang, Jun .

SMALL, 2007, 3 (07) :1174-1177

[2] An enzyme switch employing direct electrochemical communication between horseradish peroxidase and a poly(aniline) film [J].

Bartlett, PN ;

Birkin, PR ;

Wang, JH ;

Palmisano, F ;

De Benedetto, G .

ANALYTICAL CHEMISTRY, 1998, 70 (17) :3685-3694

[3] Direct electron transfer and bioelectrocatalysis of hemoglobin at a carbon nanotube electrode [J].

Cai, CX ;

Chen, J .

ANALYTICAL BIOCHEMISTRY, 2004, 325 (02) :285-292

[4] Nanoplated bismuth titanate sub-microspheres for protein immobilization and their corresponding direct electrochemistry and electrocatalysis [J].

Chen, Xiaohua ;

Hu, Jianqiang ;

Chen, Zhiwu ;

Feng, Xiumei ;

Li, Aiqing .

BIOSENSORS & BIOELECTRONICS, 2009, 24 (12) :3448-3454

[5] Graphite nanosheet-based composites for mediator-free H2O2 biosensor [J].

Chen, Xu ;

Fu, Chenglin ;

Yang, Wensheng .

ANALYST, 2009, 134 (10) :2135-2140

[6] Evolution of power sources for implantable cardioverter defibrillators [J].

Crespi, AM ;

Somdahl, SK ;

Schmidt, CL ;

Skarstad, PM .

JOURNAL OF POWER SOURCES, 2001, 96 (01) :33-38

[7] Surface segregation and formation of silver nanoparticles created in situ in poly(methyl methacrylate) films [J].

Deshmukh, Ranjan D. ;

Composto, Russell J. .

CHEMISTRY OF MATERIALS, 2007, 19 (04) :745-754

[8] One-step method embedding superoxide dismutase and gold nanoparticles in silica sol-gel network in the presence of cysteine for construction of third-generation biosensor [J].

Di, Junwei ;

Peng, Shaohua ;

Shen, Chunping ;

Gao, Yansheng ;

Tu, Yifeng .

BIOSENSORS & BIOELECTRONICS, 2007, 23 (01) :88-94

[9] Amperometric detection of triazophos pesticide using acetylcholinesterase biosensor based on multiwall carbon nanotube-chitosan matrix [J].

Du, Dan ;

Huang, Xi ;

Cai, Jie ;

Zhang, Aidong .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 127 (02) :531-535

[10]

EDDOWES MJ, 1997, J CHEM SOC CHEM COMM, V21, pB771

← 1 2 3 4 5 →