Direct Electrochemistry and Electrocatalytic Properties of Hemoglobin Immobilized on Carbon Nanotubes Ionic Liquid Electrode

被引：17
|
作者：
Moheimanian, Niloofar [1 ]
Raoof, Jahan Bakhsh [1 ]
Safavi, Afsaneh [2 ]
Ojani, Reza [1 ]
机构：
[1] Univ Mazandaran, Electroanalyt Chem Res Lab, Dept Analyt Chem, Fac Chem, Babol Sar, Iran
[2] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran
来源：
ELECTROANALYSIS | 2012年 / 24卷 / 06期
关键词：
Hemoglobin; Ionic liquid; Multiwalled carbon nanotubes; Electrocatalysis; Hydrogen peroxide; Trichloroacetic acid; PROTEINS; FILMS; ACID; BIOELECTROCHEMISTRY; NANOPARTICLES; TRANSITION; ADSORPTION; CHITOSAN; SENSORS; MATRIX;
D O I：
10.1002/elan.201200061
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Hemoglobin (Hb) was directly immobilized on a multiwalled carbon nanotubes ionic liquid electrode by immersing this electrode in a solution consisting of Hb and 1-octyl-pyridinium chloride as an ionic liquid. The immobilized Hb displayed a pair of well-defined cyclic voltammetric peaks with a formal potential of -0.187 V in acetate buffer solution, pH 5.0. This modified electrode exhibits fast response, a long linearity range, a low detection limit, high stability and excellent sensitivity through hydrogen peroxide detection with a detection limit (3s) of 3.18 mu M. The electrode was also used for electrocatalysis and voltammetric determination of oxygen and trichloroacetic acid.
引用
收藏
页码：1386 / 1393
页数：8
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