Ionic liquid modified N-doped graphene as a potential platform for the electrochemical discrimination of DNA sequences

被引：22

作者：

Sukumaran, Preethi ^{[1
]}

Vineesh, Thazhe Veettil ^{[1
]}

Rajappa, Sivamathini ^{[1
]}

Li, Chen-Zhong ^{[2
]}

Alwarappan, Subbiah ^{[1
]}

机构：

[1] CSIR, Cent Elect Res Inst, Electrod & Electrocatalysis Div, Karaikkudi 630003, Tamil Nadu, India

[2] Florida Int Univ, Nanobiosensors Bioelect Lab, Miami, FL 33174 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 247卷

关键词：

N-doped graphene; Ionic liquid; Label free platform; DNA mutation; SINGLE-LAYER GRAPHENE; SENSOR; ADSORPTION; ELECTRODE; GRAPHITE; OXIDE;

D O I：

10.1016/j.snb.2017.03.078

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Inventive designs for DNA-based electrochemical sensing are emerging tremendously in recent years. Herein, we report a label free ionic liquid (1-butyl-3-methylimidazolinium tetrafluoroborate) modified nitrogen doped graphene electrode as a potential platform for the electrochemical discrimination of complementary and non-complementary DNA sequences. The proposed platform holds a great promise for the rapid and selective hand-held detection of DNA sequences with a sensitivity and detection limit of 0.202 mu A/nM/mm(2) and 8.12 nM respectively, without any expensive labeling and cross-hybridization artifacts. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：556 / 563

页数：8

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