SPR Biosensing MUA/Poly-L-lysine Platform for the Detection of 2,4-Dinitrophenol as Small Molecule Model System

Figure 2

SERS spectra of adsorbed DNBS (blue curve) and covalently linked DNP (red curve) on nanostructured gold covered with MUA-PLL. Samples were taken in air (dried samples) with the 647.1 nm laser line. SERS spectrum of Au-MUA-PLL (black curve) was also collected as control experiment.