Dopamine

Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is a hormone and a neurotransmitter that plays several important roles in the brain and body. It is an organic chemical of the catecholamine and phenethylamine families. Dopamine constitutes about 80% of the catecholamine content in the brain. It is an amine synthesized by removing a carboxyl group from a molecule of its precursor chemical, L-DOPA, which is synthesized in the brain and kidneys. (From Wikipedia – read more)

The graph shows the SERS spectrum of 10^-4 M, Dopamine on S-AgAu substrates.

Laser wavelength: 785 nm
Laser power: 19 mW
Integration time: 4 seconds
Raman Spectrometer: B&WTEK
Lens magnification: 50x
Sampling method: immersion
The substrate used: S-AgAu hydrophilic (interchangeably, you can use one of our substrates)