Abstract
Due to the great amount of pesticides currently being used, there is an increased interest for developing biosensors for their detection. Among all the physical transducers, piezoelectric systems have emerged as the most attractive due to their simplicity, low instrumentation costs, possibility for real-time and label-free detection and generally high sensitivity. This paper presents an overview of biosensors based on the quartz crystal microbalance, which have been reported in the literature for organophosphate and carbamate pesticide analysis.
Highlights
Pesticides play an important role in the high productivity achieved in agriculture through the control of plants or animals life that are considered pests
Organophosphate and carbamate compounds represent a large number of pesticides and insecticides
Many electrochemical biosensors for organophosphate and carbamate pesticide analysis are based on the principle of inhibition of cholinesterase [34,35,36,37,38,39]
Summary
Pesticides play an important role in the high productivity achieved in agriculture through the control of plants or animals life that are considered pests. Piezoelectric sensors have attracted research interest and served as alternatives to the conventional immunoassay tools for detecting pesticides They offer advantages such as real-time output, high sensitivity, simplicity of use, and cost-effectiveness. Organophosphate and carbamate compounds represent a large number of pesticides and insecticides Because of their low persistence and high effectiveness, they are widely employed in agriculture. Based on various signal transduction mechanisms, the current existing pesticide biosensor devices primarily use enzyme-linked immunosorbent assay (ELISA), surface plasmon resonance (SPR) [15], electrochemical enzyme sensor [11]. These devices allow for sensitive detection with a limit-of-detection (LOD) range of 10−7–10−8 M. Future considerations and opportunities for advancing the use of biosensors to monitor pesticides are discussed
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