1. Electrochemical Immunosensor for Detection of Atrazine Based on Polyaniline/Graphene.
- Author
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Chuc, Nguyen Van, Binh, Nguyen Hai, Thanh, Cao Thi, Tu, Nguyen Van, Huy, Nguyen Le, Dzung, Nguyen Tuan, Minh, Phan Ngoc, Thu, Vu Thi, and Lam, Tran Dai
- Subjects
ELECTROCHEMICAL sensors ,ATRAZINE ,THIN films ,POLYANILINES ,POLLUTION ,CHEMICAL vapor deposition ,TRANSMISSION electron microscopy - Abstract
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 −12 g/L), acceptable stability and good reproducibility, the proposed electrochemical immunosensor could be advantageously extended for multiplexed detection of other agents of environmental pollution. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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