title: Mussel-Inspired Photografting on Colloidal Spheres: A Generalized Self-Template Route to Stimuli-Responsive Hollow Spheres for Controlled Pesticide Release.
abstract: 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.
authors.affiliation: School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical, Engineering of Xinjiang Bintuan Shihezi University, Shihezi, 832003, China.
authors.forename: Wenbo
authors.initials: W
authors.lastname: Sheng
authors.affiliation: School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical, Engineering of Xinjiang Bintuan Shihezi University, Shihezi, 832003, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical, Engineering of Xinjiang Bintuan Shihezi University, Shihezi, 832003, China.
authors.forename: Cuihua
authors.initials: C
authors.lastname: Li
authors.affiliation: State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China.
authors.forename: Yisheng
authors.initials: Y
authors.lastname: Xu
authors.affiliation: School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical, Engineering of Xinjiang Bintuan Shihezi University, Shihezi, 832003, China.|State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China.
authors.forename: Xuhong
authors.initials: X
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhou
authors.affiliation: School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Engineering Research Center of Materials-Oriented Chemical, Engineering of Xinjiang Bintuan Shihezi University, Shihezi, 832003, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Jia
mesh_terms: D000818:Animals; D049872:Bivalvia; D002214:Capsules / Q000737:chemistry; D007211:Indoles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D002214:Capsules; D007211:Indoles; D011108:Polymers; C568283:polydopamine
keywords: avermectin; hollow spheres; photopolymerization; polydopamine; thermally responsive systems