Copper-metalated COFs with oxidase-like activity for colorimetric glyphosate monitoring using a handheld device

, along with excellent sensitivity and selectivity. The proposed sensing platform was utilized to monitor foods containing GLY, including soybean, corn, and sunflower seeds. Meanwhile, a smartphone-compatible handheld device was fabricated for portable, real-time, and user-friendly GLY detection in field settings. Our detection platform provides a promising prospect for application.