Electrochemical Immunosensor for Detection of Atrazine Based on Polyaniline/Graphene
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第6期
论文作者：Nguyen Van Chuc Nguyen Hai Binh Cao Thi Thanh Nguyen Van Tu Nguyen Le Huy Nguyen Tuan Dzung Phan Ngoc Minh Tran Dai Lam
文章页码：539 - 544
摘 要：In this study,a novel layer-by-layer polyaniline/graphene（PANi/Gr）structure for electrochemical detection of atrazine was developed.Gr film was synthesized by thermal chemical vapor deposition（CVD）method and transferred onto the PANi-predeposited microelectrode.The properties of PANi/Gr film were thoroughly investigated by high-resolution transmission electron microscopy and Raman techniques.The most attractive feature of this system is a suitable microenvironment,which could provide an amplification of the conductive signal,thus may contribute to enhancing electron transfer and subsequently improve the sensitivity in electrochemical measurements.With low detection limit(～43×10-12g/L),acceptable stability and good reproducibility,the proposed electrochemical immunosensor could be advantageously extended for multiplexed detection of other agents of environmental pollution.
Nguyen Van Chuc1，Nguyen Hai Binh1，Cao Thi Thanh1，Nguyen Van Tu1，Nguyen Le Huy2，Nguyen Tuan Dzung3，Phan Ngoc Minh4，Tran Dai Lam6
1. Institute of Materials Science,Vietnam Academy of Science and Technology2. School of Chemical Engineering,Hanoi University of Science and Technology3. Institute for Tropical Technology,Vietnam Academy of Science and Technology4. Center for High Technology Development,Vietnam Academy of Science and Technology6. Graduate University of Science and Technology,Vietnam Academy of Science and Technology
摘 要：In this study,a novel layer-by-layer polyaniline/graphene（PANi/Gr）structure for electrochemical detection of atrazine was developed.Gr film was synthesized by thermal chemical vapor deposition（CVD）method and transferred onto the PANi-predeposited microelectrode.The properties of PANi/Gr film were thoroughly investigated by high-resolution transmission electron microscopy and Raman techniques.The most attractive feature of this system is a suitable microenvironment,which could provide an amplification of the conductive signal,thus may contribute to enhancing electron transfer and subsequently improve the sensitivity in electrochemical measurements.With low detection limit(～43×10-12g/L),acceptable stability and good reproducibility,the proposed electrochemical immunosensor could be advantageously extended for multiplexed detection of other agents of environmental pollution.
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