MULTILAYER FILM MORPHOLOGY;
ENCAPSULATED MATERIALS;
METAL NANOPARTICLES;
SWELLING PRESSURE;
MICROCAPSULES;
HYDROGELS;
AGGREGATION;
DEGRADATION;
ABSORPTION;
CAPSULES;
D O I:
10.1039/b909919k
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Giant polyelectrolyte microcapsules constructed on dex-HEMA microgel as a sacrificial template and functionalized with gold nanoparticles were found to have the ability to release encapsulated material in a pre-determined direction by selectively irradiating a given region of a capsule's wall with an infrared laser. This technology is envisioned to provide other applications in bio-medicine, an analogue of gene-gun technology on the micro-level for transfecting cells.