Electrochemical immunosensor for carcinoembryonic antigen based on signal amplification strategy of graphene and Fe3O4/Au NPs
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- 作者：Dong Peng ; Ru-Ping Liang ; He Huang ; Jian-Ding Qiu ; jdqiu@ncu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Graphene ; Chitosan-ferrocene ; Fe3O4/Au NPs ; Signal amplification ; Carcinoembryonic antigen
- 刊名：Journal of Electroanalytical Chemistry
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：761
- 期：Complete
- 页码：112-117
- 全文大小：1211 K
文摘
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Signal amplification strategy-based electrochemical immunosensor for detection of CEA
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GO/CS–Fc was employed as the matrix to immobilize antibodies.
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Enhanced sensitivity was achieved by introducing Fe3O4/Au NPs onto electrode surface.
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p-Aminophenol redox cycling was utilized to amplify the electrocatalytic current.