A reusable electrochemical biosensor for highly sensitive detection of mercury ions with an anionic intercalator supported on ordered mesoporous carbon/self-doped polyaniline nanofibers platform

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期刊论文

作者：

Tang, Lin*;Xie, Xia;Zhou, Yaoyu;Zeng, Guangming*;Tang, Jing;...

通讯作者：

Tang, Lin;Zeng, Guangming

作者机构：

[Long, Beiqing; Zeng, Guangming; Xie, Xia; Tang, Lin; Tang, Jing; Peng, Bo; Zhou, Yaoyu; Wu, Yanan; Zhu, Jingjing; Tang, L; Zeng, G] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

[Long, Beiqing; Zeng, Guangming; Xie, Xia; Tang, Lin; Tang, Jing; Peng, Bo; Zhou, Yaoyu; Wu, Yanan; Zhu, Jingjing] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.

[Zhou, Yaoyu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.

通讯机构：

[Tang, L; Zeng, G] H

Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

语种：

英文

关键词：

Reusable electrochemical biosensor;Mercury ions;Ordered mesoporous carbon;Self-doped polyaniline nanofibers;Anionic intercalator;Cysteine

期刊：

Biochemical Engineering Journal

ISSN：

1369-703X

年：

2017

卷：

117

期：

Pt.A

页码：

7-14

DOI：

10.1016/j.bej.2016.09.011

基金类别：

The study was financially supported by the National Program for Support of Top–Notch Young Professionals of China (2012), Projects 51579096, 51222805, 51521006 and 51508175 supported by National Natural Science Foundation of China , the Program for New Century Excellent Talents in University from the Ministry of Education of China (NCET–11–0129), and the Hunan Province Innovation Foundation for Postgraduate (No. CX2015B095 ).

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院系归属：

资源环境学院

摘要：

In this paper, a reusable electrochemical biosensor was developed for highly sensitive detection of mercury ions (Hg2+) using an anionic intercalator, which was based on Hg2+-induced conformational change of a thymine-rich, single-stranded DNA (ssDNA) supported on the platform of ordered mesoporous carbon (OMC) and self-doped polyaniline (SPAN) nanofibers. In the presence of Hg2+, the mercury-specific oligonucleotides were induced and folded into hairpin structure through mismatched thymine-Hg2+-thymine (T-Hg2+-T) base pairs from random coils. Then, the indicators intercalated into the hairpin...

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A reusable electrochemical biosensor for highly sensitive detection of mercury ions with an anionic intercalator supported on ordered mesoporous carbon/self-doped polyaniline nanofibers platform

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