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

Figure 1

AFM images of Au-MUA ((a) and (c)) and Au-MUA-PLL ((b) and (d)). Top, 1 × 1 μm and bottom, and 4 × 4 μm in size. Side graduated color bars indicate -scale: white color corresponds to 15 nm and 40 nm in top and bottom images, respectively.

(a)

(b)

(c)

(d)