“…It has broad-spectrum activity against Gram-negative and Gram-positive bacteria. , Due to advantages like high efficiency, low toxicity, a wide antibacterial spectrum, a small crossover of drug resistance, and a low price, the drug is widely used in livestock, poultry, and aquaculture processes. , However, its prolonged or excessive use can lead to drug residues in animal products, which can pose a threat to the health of consumers by inducing endocrine system disorders, nerve damage, and drug resistance to bacteria in the body. − The Ministry of Agriculture of the People’s Republic of China released the national standard for maximum veterinary residue limits in food in September 2022 (GB 31650.1–2022), and the maximum detection limit of ENR is 10 μg/kg. Therefore, the development of a biosensor for convenient and efficient detection of ENR residues is very important . The traditional ENR detection methods include liquid chromatography tandem mass spectroscopy, high-performance thin-layer chromatography, capillary electrophoresis, and other methods.…”