Figure 1.

PMMA/PDDA/CTAB (a), PMMA/PDDA/DODAB (b) and PMMA/PDDA/lecithin coatings cast on silicon wafers from 50 µL droplets of nanoparticles (NPs) dispersions in water (c). The NPs were synthesized at 0.56 M MMA, 5 mg·mL⁻¹ PDDA and 2 mM amphiphile (CTAB, DODAB, or lecithin). After synthesis, NPs were exhaustively dialyzed against water yielding final PDDA mass in the lyophilized coatings of 0.130 (a), 0.145 (b) and 0.140 mg (c). The bars represent 1000 nm.