**8. Conclusion**

Pesticides and other environmental pollutants are being extensively monitored due to their potential threat to humans and agriculture. As a result, multiple methods for assessing pesticide residues in various matrices have arisen. Scientifically, capillary electrophoresis, immunoassay, GC, HPLC, and fluorescence detectors have high sensitivity. On the other hand, the earlier approaches are time-consuming, costly, and need highly skilled personnel. As a result, newer technologies have developed as a feasible choice for determining insecticide contaminant levels. Pesticides are increasingly analyzed using enzyme-based biosensors instead of analytical methods. Experts seek to build low-cost, ecologically friendly technologies as pesticide residues become increasingly urgent. The established enzymatic biosensor methods must be used to detect pesticide residuals below the approved safety level. Nanobiosensors allows for simultaneous monitoring of food products such as packaged food components, fruits, vegetables, juices, and the environment. A single and miniature biosensor that employs nanomaterials has a bright future in pesticides detection.
