Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation

doi:10.3390/ma12182919

	Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation
	Ma, Xiaozhou 2,3,4; He, Linhai 3,4; Wan, Xingjie 3,4; Xiang, Shunyu 1; Fan, Yu 3,4; Xiong, Xia 3,4; Gan, Lin 3,4; Huang, Jin 2,3,4
刊名	MATERIALS
	2019-09-01
卷号	12 期号:18 页码:13
关键词	photo-responsive gel alginate gel azobenzene mechanical adjustment gel splicing
DOI	10.3390/ma12182919
通讯作者	Huang, Jin(huangjin2015@swu.edu.cn)
英文摘要	In this study, benefiting from the sensitive molecular conformation transversion in azobenzene, a new strategy for fabricating alginate gels with the abilities of splicing and photo-responsive mechanical adjustment is reported. Firstly, a 4,4'-azobis(benzoylhydrazide) (Azo-hydrazide) linker was used to crosslink alginate physically via the electrostatic interaction between hydrazide groups and carboxyl groups. It was then shaped and transferred in situ to a chemically crosslinked gel via 450 nm light irradiation. Under the irradiation, the molecular conformation change of azobenzene in the linker was able to form covalent bonds at the crosslinking points of the gels. Furthermore, the reversible conformation transformation of azobenzene was able to induce the increase and decrease of the storage modulus under irradiation with 365 nm light and 450 nm light, respectively, while also providing gel-like mechanical properties, depending upon the irradiation time and given wavelength. Meanwhile, the results also indicated that active groups could contribute to the splicing ability of the gel and construct a hollow cavity structure. It is believed that this work could provide a versatile strategy for preparing photo-responsive gels with reversibly tunable mechanical properties.
资助项目	National Natural Science Foundation of China[21905234] ; National Natural Science Foundation of China[51973175] ; Talent Project of Southwest University[SWU115034]
WOS研究方向	Materials Science
语种	英语
出版者	MDPI
WOS记录号	WOS:000489126600078
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9668]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Huang, Jin
作者单位	1.Southwest Univ, Coll Plant Protect, Chongqing 400715, Peoples R China 2.Chinese Acad Sci, Chongqing Engn Res Ctr Applicat Technol 3D Printi, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Southwest Univ, Chongqing Key Lab Soft Matter Mat Chem & Funct Mf, Chongqing 400715, Peoples R China 4.Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaozhou,He, Linhai,Wan, Xingjie,et al. Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation[J]. MATERIALS,2019,12(18):13.
APA	Ma, Xiaozhou.,He, Linhai.,Wan, Xingjie.,Xiang, Shunyu.,Fan, Yu.,...&Huang, Jin.(2019).Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation.MATERIALS,12(18),13.
MLA	Ma, Xiaozhou,et al."Reversible Mechanical Regulation and Splicing Ability of Alginate-Based Gel Based on Photo-Responsiveness of Molecular-Level Conformation".MATERIALS 12.18(2019):13.