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. Author manuscript; available in PMC: 2020 Jun 28.
Published in final edited form as: J Control Release. 2019 Apr 30;304:216–232. doi: 10.1016/j.jconrel.2019.04.041

Figure 1.

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.