Fig. 3From: Synthesis and characterisation of microcapsules for self-healing dental resin compositesSelf-healing TEGDMA-DHEPT microcapsules prepared via polymerization in situ;(A) Microcapsules presented as a free-flowing white powder, (B) poor quality microcapsules batch showing agglomerated and fused microparticles, (C and D) Optical microscope images presenting capsular shells as a dark outer ring, encapsulating the healing agents of a lighter shade opacityBack to article page