A novel signal self-enhancement photoelectrochemical immunosensor without addition of a sacrificial agent in solution based on Ag2S/CuS/α-Fe2O3 n–p–n heterostructure films

Min Chen; Cun Wang; Hui Meng; Fangjing Mo; Yingzi Fu

doi:10.1039/C9CC09721J

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A novel signal self-enhancement photoelectrochemical immunosensor without addition of a sacrificial agent in solution based on Ag₂S/CuS/α-Fe₂O₃ n–p–n heterostructure films†

Min Chen,^a Cun Wang,^a Hui Meng,^a Fangjing Mo^a and Yingzi Fu

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
E-mail: fyzc@swu.edu.cn
Tel: +86-023-68252277

Abstract

A novel signal self-enhancement photoelectrochemical immuno-sensor has been developed based on the curing of sacrificial agent SO₃²⁻ coated-Au NPs sensitizing Ag₂S/CuS/α-Fe₂O₃ n–p–n hetero-structure films for the first time. This strategy has acquired high sensitivity and low background without addition of a sacrificial agent in solution in the detection of prostate antigen.

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Article information

DOI: https://doi.org/10.1039/C9CC09721J
Article type: Communication
Submitted: 14 Dec 2019
Accepted: 17 Jan 2020
First published: 17 Jan 2020

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Chem. Commun., 2020,56, 2300-2303

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A novel signal self-enhancement photoelectrochemical immunosensor without addition of a sacrificial agent in solution based on Ag₂S/CuS/α-Fe₂O₃ n–p–n heterostructure films

M. Chen, C. Wang, H. Meng, F. Mo and Y. Fu, Chem. Commun., 2020, 56, 2300 DOI: 10.1039/C9CC09721J

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Chemical Communications