Recent development of photoelectrochemical biosensors for food analysis
Scientific analysis of food safety issues and the establishment fast and efficient food safety detection methods are of great significance for safeguarding the health of consumers, ensuring the healthy development of food safety systems, and realizing food safety strategies. As an emerging electrochemical analysis technology, photoelectrochemical (PEC) biosensor which combines the advantages of biological analysis and optical analysis, has attracted extensive attention. Due to the complete separation of the excitation source (light) and the detection signal (current), the background signal of the PEC biosensor is greatly reduced, and its sensitivity is high. The detection principle is that the biological recognition effect between the bio-specific recognition element and the corresponding targets under illumination causes the change of the signal generated by the photoactive nanomaterials. This review aims to cover the most recent advances of PEC biosensing in the field of food analysis, including mycotoxins, heavy metals, antibiotics, and pesticide residues. The future prospects in this field are also discussed.
- This article is part of the themed collection: Recent Review Articles