Manganese-based metal halide-based photoelectrochemical biosensor as well as preparation method and application thereof

• Main Authors: SHAO LONG, SONG HONGWEI, ZHOU DONGLEI, LIU DALI, LIANG JIN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a manganese-based metal halide-based photoelectrochemical biosensor as well as a preparation method and application thereof, and belongs to the technical field of photoelectrochemical biosensors. Manganese-based lead-free perovskite nanoparticles are prepared, a manganese-based metal halide Cs3MnBr5 thin film is adopted as a substrate material, the construction of the photoelectrochemical biosensor for label-free detection of alpha fetoprotein is realized by utilizing the principle that the intensity of photocurrent is reduced by virtue of antibody-antigen specific binding. The manganese-based metal halide Cs3MnBr5 synthesized by the preparation method disclosed by the invention has the advantages of excellent photoelectrochemical performance, good biocompatibility and good water stability; the photoelectrochemical biosensor is simple to synthesize, has the characteristics of high sensitivity, wide linear range and good stability and repeatability in alpha fetoprotein detection, and ha