▎ 摘　　要

NOVELTY - Preparing biological sensor based on chemical resistance involves using standard photoetching technology to print the electrode on the substrate, using electron beam evaporation deposition 20 nanometer/180 nanometer chromium/gold, silicon/silicon oxide electrode cleaning, the exposed silicon/silicon oxide electrode by acetone ultrasonic pre-treatment and nitrogen cleaning, the silicon oxide surface is hydrophilic. The reduction-oxidation graphene electrode is non-covalently functionalized with sugar through connecting molecule. The rGO device is modified by conA lectin to follow the rGO device functionalization program. USE - Method for preparing biological sensor based on chemical resistance used for construction site (claimed), where the biological sensor is useful in the field of water environment detection. ADVANTAGE - The method is fast, simple, reliable, and has strong sensitivity. The method can distinguish bacteria and virus infection and has the ability to sequence the antibiotic according to curative effect.