A sensitive electrochemical DNA biosensor based on three-dimensional nitrogen-doped graphene and Fe3O4 nanoparticles
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- 作者：Mei ChenaAuthor Vitae ; Changjun Houa ; b ; houcj@cqu.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Danqun Huoa ; huodq@cqu.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Huanbao Fac ; Yanan Zhaoa ; Caihong Shend
- 关键词：Electrochemical biosensor ; Three-dimensional graphene ; Fe3O4 ; Differential pulse voltammetry ; DNA detection
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：239
- 期：Complete
- 页码：421-429
- 全文大小：3816 K
文摘
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This work constructs an ultrasensitive electrochemical DNA biosensor.
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3D nitrogen-doped graphene (NG) and Fe3O4 composites providing a promising platform for DNA probe immobilization.
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DNA was detected sensitively due to the large specific area of 3D NG/Fe3O4 NPs which provide high capturing for molecular recognition elements.
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This biosensor proved to hold a good detection capability of DNA in complicated serum samples.