Table 1 LOD and SNR enhancement of ss-SERS.
From: Spread spectrum SERS allows label-free detection of attomolar neurotransmitters
Neurotransmitters | Dopamine @1402 cm−1 | Serotonin @927 cm−1 | Acetylcholine@1150 cm−1 | GABA @1260 cm−1 | Glutamate@1114 cm−1 |
|---|---|---|---|---|---|
LOD with ss-SERS | 1.9 aM | 3.0 aM | 1.0 aM | 99 aM | 39 aM |
Measured SNR EF (SNRss-SERS/SNRSERS) @ 1 mM | 1.9 × 103 | 1.3 × 103 | 1.5 × 103 | 0.5 × 103 | 0.8 × 103 |
600 nM | 100 nM | 4.0 μM | 50 μM | 600 nM |
