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 9 2021
Accepted
19 10 2021
First published
20 10 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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