Janus effect of antifreeze proteins on ice nucleation
文献类型：期刊论文
| 作者 | Liu, Kai1,2; Wang, Chunlei3,4; Ma, Ji5; Shi, Guosheng3,4; Yao, Xi1; Fang, Haiping3,4; Song, Yanlin1,2; Wang, Jianjun1,2 |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2016-12-20 |
| 卷号 | 113期号:51页码:14739-14744 |
| 关键词 | Antifreeze Proteins Ice Nucleation Janus Effect Interfacial Water Selective Tethering |
| 英文摘要 | 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. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/37969]  |
| 专题 | 化学研究所_绿色印刷实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 5.Xinjiang Univ, Coll Life Sci & Technol, Xinjiang Key Lab Biol Resources & Genet Engn, Urumqi 830046, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Kai,Wang, Chunlei,Ma, Ji,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, Kai.,Wang, Chunlei.,Ma, Ji.,Shi, Guosheng.,Yao, Xi.,...&Wang, Jianjun.(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, Kai,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. |
入库方式： OAI收割
来源：化学研究所
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