A highly sensitive colorimetric sensor for adrenaline detection based on organic molecules-functionalized gold nanoparticles

- A simple adrenaline sensor based on AHMT-coated AuNPs was presented.
- The sensor can be applied in human serum sample.
- The sensor exhibited low detection limit (1 nM) and wide linear range to adrenaline (7 nM-0.1 mM).