A photoelectrochemical biosensor based on methylene blue sensitized Bi5O7I for sensitive detection of PSA. Issue 93 (8th November 2021)

• Record Type: Journal Article
• Authors: Xiang, Xuelian; Wang, Yanlin; Zhang, Yanhui; Yuan, Ruo; Wei, Shaping
• Is Part Of: Chemical communications. Volume 57:Issue 93(2021)
• Page Start: 12480
• Page End: 12483
• Publication Date: 2021-11-08
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc05164d
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Bismuth oxyiodide was used as a signal probe to construct a sensitization structure with methylene blue, combined with protein conversion strategy, and a photoelectrochemical biosensor was constructed for detection of prostate-specific antigen. Abstract : Herein, bismuth oxyiodide (Bi5 O7 I) 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.