Figure 4.

SERS analysis of p-aminothiophenol and amoxicillin. SERS spectra of p-aminothiophenol (patp) and amoxicillin (amx) adsorbed on PEG-reduced silver sol using both 633-nm (curves A and C) and 532-nm (curves B and D) laser lines. The spectra were shifted for clarity. Specific vibrational peaks of analytes molecules are clearly visible for all three classes of silver colloids.

Stiufiuc et al. Nanoscale Research Letters 2013 8:47   doi:10.1186/1556-276X-8-47
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