Monitoring of pesticide focus distribution throughout farm fields is essential to make sure exact and environment friendly utility whereas stopping overuse or untreated areas. Impressed by nature’s wettability patterns, we developed a biomimetic fern leaf pesticide assortment patch utilizing laser-induced graphene (LIG) alongside an exterior electrochemical LIG biosensor. This “collect-and-sense” system permits for fast pesticide spray monitoring within the farm discipline. The LIG is synthesized and patterned on polyimide by a high-throughput gantry-based CO2 laser course of, making it amenable to scalable manufacturing. The ensuing LIG-based leaf reveals a outstanding water assortment capability, harvesting spray mist/fog at a charge roughly 11 instances larger than a pure ostrich fern leaf when the gathering is normalized to floor space. The developed three-electrode LIG pesticide biosensor, that includes a working electrode functionalized with electrodeposited platinum nanoparticles (PtNPs) and the enzyme glycine oxidase, displayed a linear vary of 10–260 μM, a detection restrict of 1.15 μM, and a sensitivity of 5.64 nA μM−1 for the extensively used herbicide glyphosate. Additionally, a conveyable potentiostat with a user-friendly interface was developed for distant operation, reaching an accuracy of as much as 97%, when in comparison with a typical business benchtop potentiostat. The LIG “collect-and-sense” system can persistently acquire and monitor glyphosate spray after 24–48 hours of spraying, a time that corresponds to the restricted-entry interval required to enter most farm fields after pesticide spraying. Therefore, this progressive “collect-and-sense” system not solely advances precision agriculture by enabling monitoring and mapping of pesticide distribution but additionally holds the potential to considerably cut back environmental impression, improve crop administration practices, and contribute to the sustainable and environment friendly use of agrochemicals in fashionable agriculture.
