Synthesis and characterization of dopamine-modified Ca-alginate/poly (N-isopropylacrylamide) microspheres for water retention and multi-responsive controlled release of agrochemicals

NWIPB OpenIR

	Synthesis and characterization of dopamine-modified Ca-alginate/poly (N-isopropylacrylamide) microspheres for water retention and multi-responsive controlled release of agrochemicals
	Zheng, Dan; Bai, Bo; He, Yunhua; Hu, Na; Wang, Honglun
	2020
发表期刊	INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷号	160
摘要	The multi-responsive controlled-release system could enhance crop yield while improving utilization efficiency of agrochemicals, and minimize environmental pollution caused by agrochemicals overuse. This work reports a novel Ca-alginate/Poly(N-isopropylacrylamide)@polydopa mine (Ca-alginate/PN1PAm@PDA) microsphere to control the agrochemicals release. Microsphere with a semi-interpenetrating network, which contained pH-sensitive Ca-alginate, temperature-sensitive poly(N-isopropylacrylamide) (PNIPAm), and sunlight-sensitive polydopamine (PDA), was characterized by thermogravimetric analysis, zeta potential, Fourier transform infrared spectroscopy, and scanning electron microscopy to prove the successful synthesis. Moreover, the comprehensive performances, including photothermal conversion, water absorbency, water retention, and controlled-release agrochemicals behaviors, were systematically investigated. The results indicated that the composite microsphere was a prosperous water and agrochemicals manager to effectively retain water and control the release of agrochemicals by external stimulation. Consequently, the Ca-alginate/PNIPAm@PDA microsphere with outstanding water-retention and controlled-release capacities is economical and eco-friendly and thus is promising for utilization as water and agrochemicals controlled-release carrier material in agriculture applications. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Multi-responsive Poly(N-isopropylacrylamide) Polydopamine Photothennal conversion Controlled release
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60239
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zheng, Dan,Bai, Bo,He, Yunhua,et al. Synthesis and characterization of dopamine-modified Ca-alginate/poly (N-isopropylacrylamide) microspheres for water retention and multi-responsive controlled release of agrochemicals[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2020,160.
APA	Zheng, Dan,Bai, Bo,He, Yunhua,Hu, Na,&Wang, Honglun.(2020).Synthesis and characterization of dopamine-modified Ca-alginate/poly (N-isopropylacrylamide) microspheres for water retention and multi-responsive controlled release of agrochemicals.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,160.
MLA	Zheng, Dan,et al."Synthesis and characterization of dopamine-modified Ca-alginate/poly (N-isopropylacrylamide) microspheres for water retention and multi-responsive controlled release of agrochemicals".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 160(2020).