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

页码：1386 / 1393

页数：8

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