SERS Microspectroscopy of Biomolecules on Dried Ag Colloidal Drops
Figure 2
Examples of SE(R)RS spectra obtained from the dried Ag colloid/biomolecule drops with (a) 1 × 10−7 M TMPyP (514.5-nm excitation, 1 s), (b) 1 × 10−5 M tryptophan (632.8-nm excitation, 1 s × 60) and (c) 2 × 10−6 M (1.7 × 10−3 mg/mL) DSPC (632.8-nm excitation, 5 s × 40).
