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

Figure 5

SPR binding isotherms obtained by injection of anti-DNP solutions over Au-MUA-PLL-DNP. Hexagons, stars, and pentagons correspond to the freshly made 6-day-old and 48-day-old platform kept at –20°C. Each point corresponds to the SPR signal after the end of the antibody injection and before the start of the regeneration step.