Ultrasensitive dopamine sensor based on novel molecularly imprinted polypyrrole coated carbon nanotubes

被引：171

作者：

Qian, Tao ^{[1
]}

Yu, Chenfei ^{[1
]}

Zhou, Xi ^{[1
]}

Ma, Peipei ^{[1
]}

Wu, Shishan ^{[1
]}

Xu, Lina ^{[1
]}

Shen, Jian ^{[1
,2
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China

[2] Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Nanjing 210046, Jiangsu, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2014年 / 58卷

基金：

中国国家自然科学基金;

关键词：

Polypyrrole; Carbon nanotubes; Molecularly imprinted polymers; Dopamine; Electrochemical sensor; REDUCED GRAPHITE OXIDE; ELECTROCHEMICAL SENSOR; GRAPHENE OXIDE; GOLD NANOPARTICLES; COMPOSITE; POLYMERS; RECOGNITION; FILM; SPECTROSCOPY; ACID;

D O I：

10.1016/j.bios.2014.02.081

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

A novel electrochemical sensor using the molecularly imprinted (MIP) oxygen-containing polypyrrole (PPy) decorated carbon nanotubes (CNTs) composite was proposed for in vivo detection of dopamine (DA). The prepared sensor exhibits a remarkable sensitivity of (16.18 mu A/mu M) with a linear range of 5.0 x 10(-11)-5.0 x 10(-6) M and limit of detection as low as 1.0 x 10(-11) M in the detection of DA, which might be due to the plenty cavities for binding DA through pi-pi stacking between aromatic rings and hydrogen bonds between amino groups of DA and oxygen-containing groups of the novel PPy. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：237 / 241

页数：5

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