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. Author manuscript; available in PMC: 2022 Feb 1.
Published in final edited form as: Adv Healthc Mater. 2020 Jun 16;10(4):e2000587. doi: 10.1002/adhm.202000587

Figure 4.

Figure 4.

Synthesis of silica-based nanobottles through site-selected protection and deposition. (A) Schematic illustration showing the synthesis of a silica/vinyl-silica nanobottle by templating with a Au–PS Janus particle. (B, D) TEM images of Au–PS Janus particles derived from (B) 50- and (D) 100-nm Au nanoparticles. (C, E) SEM and TEM (insets) images of silica nanobottles obtained by templating with the Au–PS Janus particles in (B, D), respectively. Reproduced with permission.[15] Copyright 2019 Wiley-VCH.