Issue 93, 2021

A photoelectrochemical biosensor based on methylene blue sensitized Bi5O7I for sensitive detection of PSA

Abstract

Herein, bismuth oxyiodide (Bi5O7I) was used as a signal probe to construct an effective sensitization structure with methylene blue (MB), combined with protein conversion strategy, and a photoelectrochemical (PEC) biosensor was constructed for sensitive detection of prostate-specific antigen (PSA). The designed biosensor had a high sensitivity and a low detection limit (LOD) of 0.047 fg mL−1, which opened up a simple way for the detection of PSA and showed a good application prospect in clinical and medical fields.

Graphical abstract: A photoelectrochemical biosensor based on methylene blue sensitized Bi5O7I for sensitive detection of PSA

Supplementary files

Article information

Article type
Communication
Submitted
14 Sept. 2021
Accepted
19 Okt. 2021
First published
20 Okt. 2021

Chem. Commun., 2021,57, 12480-12483

A photoelectrochemical biosensor based on methylene blue sensitized Bi5O7I for sensitive detection of PSA

X. Xiang, Y. Wang, Y. Zhang, R. Yuan and S. Wei, Chem. Commun., 2021, 57, 12480 DOI: 10.1039/D1CC05164D

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