Graphene Oxide Restricts Growth and Recrystallization of Ice Crystals

	Graphene Oxide Restricts Growth and Recrystallization of Ice Crystals
	Geng, Hongya 1; Liu, Xing 2,3; Shi, Guosheng 2,3; Bai, Guoying 1; Ma, Ji 4; Chen, Jingbo 5; Wu, Zhuangyuan 5; Song, Yanlin 1; Fang, Haiping 2,3; Wang, Jianjun 1
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2017-01-19
卷号	56 期号:4 页码:997-1001
关键词	Cryopreservation Gibbs-thompson Effect Graphene Oxide Hydrogen Bonds Ice Formation
英文摘要	We show graphene oxide (GO) greatly suppresses the growth and recrystallization of ice crystals, and ice crystals display a hexagonal shape in the GO dispersion. Preferred adsorption of GO on the ice crystal surface in liquid water leads to curved ice crystal surface. Therefore, the growth of ice crystal is suppressed owing to the Gibbs-Thompson effect, that is, the curved surface lowers the freezing temperature. Molecular dynamics simulation analysis reveals that oxidized groups on the basal plane of GO form more hydrogen bonds with ice in comparison with liquid water because of the honeycomb hexagonal scaffold of graphene, giving a molecular-level mechanism for controlling ice formation. Application of GO for cryopreservation shows that addition of only 0.01 wt% of GO to a culture medium greatly increases the motility (from 24.3% to 71.3%) of horse sperms. This work reports the control of growth of ice with GO, and opens a new avenue for the application of 2D materials.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38106]
专题	化学研究所_绿色印刷实验室
作者单位	1.Chinese Acad Sci, Key Lab Green Printing, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 4.Xinjiang Univ, Coll Life Sci & Technol, Xinjiang Key Lab Biol Resources & Genet Engn, Urumqi 830002, Peoples R China 5.Xinjiang Acad Anim Sci, Inst Anim Sci, Urumqi 830022, Peoples R China
推荐引用方式 GB/T 7714	Geng, Hongya,Liu, Xing,Shi, Guosheng,et al. Graphene Oxide Restricts Growth and Recrystallization of Ice Crystals[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2017,56(4):997-1001.
APA	Geng, Hongya.,Liu, Xing.,Shi, Guosheng.,Bai, Guoying.,Ma, Ji.,...&Wang, Jianjun.(2017).Graphene Oxide Restricts Growth and Recrystallization of Ice Crystals.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,56(4),997-1001.
MLA	Geng, Hongya,et al."Graphene Oxide Restricts Growth and Recrystallization of Ice Crystals".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56.4(2017):997-1001.