Synthesis and Physicochemical Characterization of Mesoporous Nanoparticles

Figure 2

SEM images of SiNPs before and after surface modification: unmodified (a); C₃–COOH (b); and C₁₁–COOH modified SiNP600 (c). Scale bar is 1 μm in each case.

(a)

(b)

(c)