文献类型：期刊文献

英文题名：Mussel-Inspired Photografting on Colloidal Spheres: A Generalized Self-Template Route to Stimuli-Responsive Hollow Spheres for Controlled Pesticide Release

作者：Sheng, Wenbo[1];Li, Wei[1];Li, Bin[2];Li, Cuihua[1];Xu, Yisheng[3];Guo, Xuhong[1,3];Zhou, Feng[2];Jia, Xin[1]

机构：[1]Shihezi Univ, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Key Lab Mat Oriented Chem Engn Xinjiang Uygur Aut, Engn Res Ctr Mat Oriented Chem Engn Xinjiang Bint, Shihezi 832003, Peoples R China;[2]Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China;[3]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：36

期号：18

起止页码：1640

外文期刊名：MACROMOLECULAR RAPID COMMUNICATIONS

收录：;EI(收录号：20153801292357);WOS:【SCI-EXPANDED(收录号:WOS:000362555900002)】；

基金：This work was supported by the National Natural Science Foundation of China (21264013 and 21364010), the Technology Foundation for Selected Overseas Chinese Scholar, the Ministry of Human Resources and Social Security of the People's Republic of China and the Scientific Research Foundation for High Level Talents of Shihezi University (RCZX 201206).

语种：英文

外文关键词：avermectin; hollow spheres; photopolymerization; polydopamine; thermally responsive systems

摘要：A thermo-controlled pesticide release system composed of poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) thin film grafted polydopamine (PDA) (PDMAEMA-g-PDA) microcapsules is reported. SiO2 microparticles are used as a template to prepare PDA-coated SiO2 microparticles. The thermally-responsive PDMAEMA thin films are grafted on PDA surfaces using a metal-free surface-initiated photopolymerization approach without adding any photo initiator or photosensitizer under UV light irradiation. The subsequent acid etching yields PDMAEMA-g-PDA hollow microcapsules. PDMAEMA-g-PDA microcapsules exhibit well-controlled release of avermectin (Av). The results show that the loading ability of PDMAEMA-g-PDA microcapsules of Av is up to 52.7% (w/w). The release kinetics of Av demonstrate that Av@PDMAEMA-g-PDA microcapsules exhibit temperature-controlled release performance. This work is significant for controlled release systems. This simple design is expected to be used in various applications, such as in controlled drug release and agriculture-related fields.