期刊
NATURE NANOTECHNOLOGY
卷 14, 期 6, 页码 609-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41565-019-0415-0
关键词
-
资金
- SNF Sinergia grant [CRSII2_154451]
- SNF grants [200020_178997, 200021_172767]
- Swiss National Science Foundation (SNF) [200020_178997, 200021_172767] Funding Source: Swiss National Science Foundation (SNF)
Water is a ubiquitous liquid with unique physicochemical properties, whose nature has shaped our planet and life as we know it. Water in restricted geometries has different properties than in bulk. Confinement can prevent low-temperature crystallization of the molecules into a hexagonal structure and thus create a state of amorphous water. To understand the survival of life at subzero temperatures, it is essential to elucidate this behaviour in the presence of nanoconfining lipidic membranes. Here we introduce a family of synthetic lipids with designed cyclopropyl modifications in the hydrophobic chains that exhibit unique liquid-crystalline behaviour at low temperature, which enables the maintenance of amorphous water down to similar to 10 K due to nanoconfinement. The combination of experiments and molecular dynamics simulations unveils a complex lipid-water phase diagram in which bicontinuous cubic and lamellar liquid crystalline phases that contain subzero liquid, glassy or ice water emerge as a competition between the two components, each pushing towards its thermodynamically favoured state.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据