Janus effect of antifreeze proteins on ice nucleation
Liu, K; Wang, CL; Ma, J; Shi, GS; Yao, X; Fang, HP; Song, YL; Wang, JJ; Wang, JJ (reprint author), Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China.; Wang, JJ (reprint author), Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China.; Wang, CL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China.; Wang, CL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China.
2016
发表期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
卷号113期号:51页码:14739-14744
文章类型期刊论文
摘要The mechanism of ice nucleation at the molecular level remains largely unknown. Nature endows antifreeze proteins (AFPs) with the unique capability of controlling ice formation. However, the effect of AFPs on ice nucleation has been under debate. Here we report the observation of both depression and promotion effects of AFPs on ice nucleation via selectively binding the ice-binding face (IBF) and the non-ice-binding face (NIBF) of AFPs to solid substrates. Freezing temperature and delay time assays show that ice nucleation is depressed with the NIBF exposed to liquid water, whereas ice nucleation is facilitated with the IBF exposed to liquid water. The generality of this Janus effect is verified by investigating three representative AFPs. Molecular dynamics simulation analysis shows that the Janus effect can be established by the distinct structures of the hydration layer around IBF and NIBF. Our work greatly enhances the understanding of the mechanism of AFPs at the molecular level and brings insights to the fundamentals of heterogeneous ice nucleation.
关键词Antifreeze Proteins Ice Nucleation Janus Effect Interfacial Water Selective Tethering
DOI10.1073/pnas.1614379114
收录类别SCI
语种英语
WOS记录号WOS:000390044900063
引用统计
被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26554
专题中科院上海应用物理研究所2011-2018年
通讯作者Wang, JJ (reprint author), Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China.; Wang, JJ (reprint author), Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China.; Wang, CL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China.; Wang, CL (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China.
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Liu, K,Wang, CL,Ma, J,et al. Janus effect of antifreeze proteins on ice nucleation[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2016,113(51):14739-14744.
APA Liu, K.,Wang, CL.,Ma, J.,Shi, GS.,Yao, X.,...&Wang, CL .(2016).Janus effect of antifreeze proteins on ice nucleation.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(51),14739-14744.
MLA Liu, K,et al."Janus effect of antifreeze proteins on ice nucleation".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.51(2016):14739-14744.
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