Selective and Fast Cortisol Sensing in Human Saliva Using Graphene‐Based On‐Chip Field‐Effect Transistors
Monitoring of biomarkers in body fluids is highly sought after for medical diagnostics and tracking health conditions. Conventional analytical methods require centralized facilities and complex protocols, limiting applicability for real‐time or point‐of‐care use. In recent years, graphene‐based transducers have shown h...