Liquid Metal Droplets Wrapped with Polysaccharide Microgel as Biocompatible Aqueous Ink for Flexible Conductive Devices

doi:10.1002/adfm.201804197

	Liquid Metal Droplets Wrapped with Polysaccharide Microgel as Biocompatible Aqueous Ink for Flexible Conductive Devices
	Li, Xiankai 1,2; Li, Mingjie 1; Zong, Lu 1,2; Wu, Xiaochen 1; You, Jun 1; Du, Peikang 3; Li, Chaoxu 1,2
刊名	ADVANCED FUNCTIONAL MATERIALS
	2018-09-26
卷号	28 期号:39 页码:8
关键词	conductive nanoinks flexible electronics liquid metals marine alginate microgels
ISSN号	1616-301X
DOI	10.1002/adfm.201804197
英文摘要	Nanometerization of liquid metal in organic systems can facilitate deposition of liquid metals onto substrates and then recover its conductivity through sintering. Although having broader potential applications, producing stable aqueous inks of liquid metals keeps challenging because of rapid oxidation of liquid metal when exposing to water and oxygen. Here, a biocompatible aqueous ink is produced by encapsulating alloy nanodroplets of gallium and indium (EGaIn) into microgels of marine polysaccharides. During sonicating bulk EGaIn in aqueous alginate solution, alginate not only facilitates the downsizing process via coordination of their carboxyl groups with Ga ions but also forms microgel shells around EGaIn droplets. Due to the deceasing oxygen-permeability of microgel shells, aqueous ink of EGaIn nanodroplets can maintain colloidal and chemical stability for a period of >7 d. Crosslinked alginate-gel with tunable thickness can retard the generation and release of toxic cations, thereby affording high biocompatibility. The soft alginate shells also enable to recover electric conductivity of EGaIn layers by mechanical sintering for applications in microcircuits, electric-thermal actuators, and wearable sensors, offering huge potential for electronic tattoos, artificial limbs, electric skins, etc.
资助项目	National Natural Science Foundation of China[21474125] ; National Natural Science Foundation of China[51603224] ; National Natural Science Foundation of China[51608509] ; Chinese "1000 Youth Talent Program," ; Shandong "Taishan Youth Scholar Program" ; Shandong Provincial Natural Science Foundation[JQ201609] ; Shandong Provincial Natural Science Foundation[ZR2016EEB25] ; Shandong Collaborative Innovation Centre for marine biomass fiber materials and textiles
WOS关键词	SHAPE-MEMORY ; NANOPARTICLES ; MICROSPHERES ; COMPOSITE ; RELEASE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000445327300027
资助机构	National Natural Science Foundation of China ; Chinese "1000 Youth Talent Program," ; Shandong "Taishan Youth Scholar Program" ; Shandong Provincial Natural Science Foundation ; Shandong Collaborative Innovation Centre for marine biomass fiber materials and textiles
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/11608]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Li, Chaoxu
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Grp Biomimet Smart Mat, Songling Rd 189, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Nanjing Univ Posts & Telecommun, 9 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiankai,Li, Mingjie,Zong, Lu,et al. Liquid Metal Droplets Wrapped with Polysaccharide Microgel as Biocompatible Aqueous Ink for Flexible Conductive Devices[J]. ADVANCED FUNCTIONAL MATERIALS,2018,28(39):8.
APA	Li, Xiankai.,Li, Mingjie.,Zong, Lu.,Wu, Xiaochen.,You, Jun.,...&Li, Chaoxu.(2018).Liquid Metal Droplets Wrapped with Polysaccharide Microgel as Biocompatible Aqueous Ink for Flexible Conductive Devices.ADVANCED FUNCTIONAL MATERIALS,28(39),8.
MLA	Li, Xiankai,et al."Liquid Metal Droplets Wrapped with Polysaccharide Microgel as Biocompatible Aqueous Ink for Flexible Conductive Devices".ADVANCED FUNCTIONAL MATERIALS 28.39(2018):8.