Towards green monitoring of antibiotics: a direct biochar-based electrochemical sensor for ampicillin detection in biomedical and environmental matrices.
Antimicrobial resistance (AMR) represents a global health burden, requiring effective monitoring of antibiotic residues across the clinical-environmental chain. However, reference methods remain laboratory-based and solvent-intensive. To address this need in an ecologically responsible manner, this study exploits KOH-a...