Graphene Based Electrochemical Sensing of Harmful Herbicides
Although glyphosate is a widely used non-toxic herbicide, its detection in the field is challenging due to the lack of portable equipment. Although these herbicides are present in surface water, farmer urine, and crop residues, fast, easy-to-use field sensors are not currently available, requiring transport of samples to the laboratory. You Study: Enzymatic Laser Induced Graphene Biosensor for Electrochemical Sensing of Glyphosate Herbicides. Image Credit: FrankHH/Shutterstock.com In an article recently published in the journal Global Challenges, a platinum-decorated graphene (LIG) biosensor was developed with the immobilized flavoenzyme glycine oxidase (GlyOx) and used to detect the herbicide glyphosate, as it is a substrate for GlyOx. Thus, this graphene biosensor provides a scaffold for enzyme attachment. The results reveal that the graphene biosensor exhibits a detection range of 10 to 260 micromoles with a detection limit (LOD) of 3.03 micromoles and a sensitivity of 0.991 nano