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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Dent Mater. 2015 Dec 29;32(2):294–304. doi: 10.1016/j.dental.2015.11.014

Figure 1.

Figure 1

Microcapsules were prepared with polymerizable TEGDMA-DHEPT healing liquid inside PUF shells. (A) Photo showing a pile of the synthesized microcapsules. (B) Transmitting optical image showing the shell structure as a dark ring. (C) SEM image of typical microcapsules. (D) High magnification SEM image of the shell surface, showing nanoparticle deposits on an otherwise smooth shell surface. (E) High magnification SEM image indicating the shell thickness. (F) Optical image of crushed microcapsules showing the released healing liquid films.