Direct Electron Transfer of Hemoglobin on Manganese III Oxide-Ag Nanofibers Modified Glassy Carbon Electrode

被引：7
|
作者：
Negahdary, Masoud [1 ]
Mazaheri, Gholamreza [1 ]
Rad, Somyyeh [1 ]
Hadi, Mohammadreza [2 ]
Malekzadeh, Roya [3 ]
Saadatmand, Mohammad Mahdi [4 ]
Rezaei-Zarchi, Saeed [3 ]
Pishbin, Fariba [1 ]
Khosravian-hemami, Mojdeh [2 ]
机构：
[1] Payam E Noor Univ, Dept Biol, Tehran 7371719578, Iran
[2] Shahrekord Univ, Dept Biol, Shahrekord, Iran
[3] Payam E Noor Univ, Dept Biol, Taft, Iran
[4] Islamic Azad Univ, Yazd Branch, Yazd, Iran
来源：
INTERNATIONAL JOURNAL OF ANALYTICAL CHEMISTRY | 2012年 / 2012卷
关键词：
BIOFUEL CELLS; BIOSENSOR; POLYVINYLPYRROLIDONE; CORROSION; FILM;
D O I：
10.1155/2012/375831
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We investigated the electrochemical behavior of hemoglobin by glassy carbon electrode modified with Mn2O3-Ag nanofibers. The Mn2O3-Ag nanofibers were used as facilitator electron transfer between Hb and glassy-carbon-modified electrode. The Mn2O3-Ag nanofibers are studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The hemoglobin showed a quasireversible electrochemical redox behavior with a formal potential of -49 mV (versus Ag/AgCl) in 0.1 M potassium phosphate buffer solution at pH 7.0. The designed biosensor possesses good stability and reproducibility and achieves 95% of the steady-state current in less than five seconds.
引用
收藏
页数：7
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