Integration of Metallic Nanomaterials and Recognition Elements for the Specifically Monitoring of Pesticides in Electrochemical Sensing

• Published in: Critical reviews in analytical chemistry Vol. 54; no. 7; pp. 2636 - 2657
• Main Authors: Jiang, Wenpeng, Li, Zhaojie, Yang, Qingli, Hou, Xiudan
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 2024; Taylor & Francis Ltd
• Subjects: Acetylcholinesterase; aptamer; Aptamers; Bimetals; Biosensing Techniques - methods; Biosensors; Electrical conductivity; Electrical resistivity; Electrochemical biosensor; Electrochemical Techniques - instrumentation; Electrochemistry; Electrode materials; Electrodes; Imprinted polymers; Metal Nanoparticles - chemistry; Metal oxides; Metal-organic frameworks; metallic nanomaterials; Metals; Molybdates; Nanomaterials; Nanoparticles; Nanostructures - chemistry; Nanotechnology; Pesticide residues; Pesticides; Pesticides - analysis; Polymers; Recognition; Sensitivity; Target detection; Electrochemical biosensor; metallic nanomaterials; aptamer; pesticides
• ISSN: 1040-8347; 1547-6510; 1547-6510
• DOI: 10.1080/10408347.2023.2189955

Although all countries have been controlling the excessive use of pesticides, incidents of pesticide residues still existed. Electrochemical biosensors are extensively applied detection techniques to monitor pesticides with the help of different types of biorecognition components mainly including, antibodies, aptamers, enzymes (i.e., acetylcholinesterase, organophosphorus hydrolase, etc.), and synthetic molecularly imprinted polymers. Besides, the electrode materials mainly affected the sensitivity of electrochemical biosensors. Metallic nanomaterials with various structures and excellent electrical conductivity were desirable choice to construct electrochemical platforms to achieve the detection with high sensitivity and good specificity toward the target. This work reviewed the developed metallic materials including monometallic nanoparticles, bimetallic nanomaterials, metal atoms, metal oxides, metal molybdates, metal-organic frameworks, MXene, etc. Integration of recognition elements endowed the electrode materials with higher specificity toward the target pesticide. Besides, future challenges of metallic nanomaterials-based electrochemical biosensors for the detection of pesticides are also discussed and described.