| 초록 |
This talk introduces a versatile microfluidic technique for fabricating a variety of monodisperse functional shell materials. Microfluidic approach is truly advantageous, since it allows us to achieve tight control over the size and monodispersity of droplets as well as interfacial structures. These characteristics are indeed essential for precisely determining loading levels as well as transport kinetics of encapsulated actives. Basically, we use double emulsion as a template for the fabrication of functional polymers into vesicular structures. We demonstrate that these shell materials can be used to effectively encapsulate hydrophilic solutes with different length scales and controllably release them by applying external stimuli, such as osmotic shock, heat, and pH. Moreover, we show that shell layers either show tunable phase transitions or mechanically break and release the active ingredients therein. |
