Figure 1.
Transmission electron microscopy images of (A) Stöber SNPs50 with average diameter of 46 ± 4.9 nm, (B) Stöber SNPs500 with average diameter of 432 ± 18.7 nm, (C) mesoporous SNPs500 with average diameter of 466 ± 86 nm. Scanning electron microscopy images of (D) Stöber SNPs50, (E) Stöber SNPs500, (F) MSNPs500.