Photomechanically Controlled Encapsulation and Release from pH-Responsive and Photoresponsive Microcapsules.

@article{Wang2015PhotomechanicallyCE,
  title={Photomechanically Controlled Encapsulation and Release from pH-Responsive and Photoresponsive Microcapsules.},
  author={Xiaotao Wang and ZhenHua Li and Yingkui Yang and Xinghou Gong and Yonggui Liao and Xiaolin Xie},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2015},
  volume={31 19},
  pages={5456-63}
}
Poly(acrylic acid)/azobenzene microcapsules were obtained through distillation precipitation polymerization and the selective removal of silica templates by hydrofluoric acid etching. The uniform, robust, and monodisperse microcapsules, confirmed by transmission electron microscopy and scanning electron microscopy, had reversible photoisomerization under ultraviolet (UV) and visible light. Under UV irradiation, azobenzene cross-linking sites in the main chain transformed from the trans to cis… CONTINUE READING

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