Phototactic Poly(N-isopropyl acrylamide)Microgels with Photoresponsive Property  

具有光响应性的聚异丙基丙烯酰胺趋光微凝胶

作　　者：Xiao-ran Wu Xiang Xue Jing-hang Wang He-wen Liu 吴莜然;薛翔;汪景行;刘和文(中国科学技术大学高分子科学与工程系,中国科学院软物质化学重点实验室,合肥230026)

机构地区：[1]CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Journal of Chemical Physics》2022年第5期823-834,I0012,I0013,共14页化学物理学报（英文）

基　　金：supported by the National Natural Science Foundation of China(No.21274135,No.21871243 and No.51673181)。

摘　　要：Smart functional microgels hold great potential in a variety of applications,especially in drug transportation.However,current drug carriers based on physiological internal stimuli cannot efficiently orientate to designated locations.Therefore,it is necessary to introduce the self-propelled particles to the drug release of the microgels.In order to study self-propulsion of microgels induced by light,it is also a challenge to prepare micronsized microgels so that they can be observed directly under optical microscopes.In this work,phototactic microgels with photoresponsive properties are prepared.The microgel particles can be observed by confocal laser scanning microscopy.The photoresponsive properties of microgels are fully investigated by various instruments.Light can also regulate the state of the microgel solution,making it switch between turbidity and clarity.The phototaxis of particles irradiated by UV light was studied,which may be used for microgels enrichment and drug transportation and release.

关 键 词：PHOTOTAXIS PHOTORESPONSIVE Poly(N-isopropyl acrylamide) MICROGEL 

分 类 号：TQ427.26[化学工程] TQ460.4