Molecularly imprinted “on-off” ratiometric fluorescence paper-based sensor for rapid and visual detection of sulfamethoxazole

Key Points

• The ratiometric fluorescence sensor detects sulfamethoxazole with high specificity and rapid response, and operates efficiently in just minutes.
• Sensitivity reaches detection limits in the low micromolar range, underscoring its potential for real-world applications in water quality testing.
• Development involves a molecular imprinting technique to enhance sensor accuracy and selectivity for the sulfamethoxazole analyte.
• Highlighting the feasibility of using this sensor in various settings indicates promising future uses in environmental and health monitoring.