Dynamic behaviors of interfacial water on the self-assembly monolayer (SAM) heterogeneous surface

doi:10.1063/5.0019135

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	Dynamic behaviors of interfacial water on the self-assembly monolayer (SAM) heterogeneous surface
	Tian, Ranran 1,2; Hu, Guorong 2; Ou, Xinwen 2; Luo, Mengbo 2; Li, Jingyuan 2
刊名	Journal of Chemical Physics
	2020-09-28
卷号	153 期号:12
关键词	Hydrophilicity Hydrophobicity Molecular dynamics Molecules Monolayers Self assembly Surface chemistry Bound water molecules Heterogeneous surface Hydrophilic surfaces Hydrophobic and hydrophilic Hydrophobic surfaces Interfacial water molecules Molecular dynamics simulations Self assembly monolayers
ISSN号	00219606
DOI	10.1063/5.0019135
英文摘要	Dynamic behaviors of water molecules near the surface with mixed hydrophobic and hydrophilic areas are studied by molecular dynamics simulation. More specifically, the diffusion coefficient and hydrogen bond lifetime of interfacial water on the self-assembly monolayer composed of hydrophobic and hydrophilic groups and their dependence on the mixing ratio are studied. The diffusion dramatically slows down, and the hydrogen bond lifetime considerably increases when a few hydrophilic groups are added to the hydrophobic surface. When the percentage of hydrophilic groups increases to 25%, the behavior of interfacial water is similar to the case of the pure hydrophilic surface. The sensitivity to the hydrophilic group can be attributed to the fact that the grafted hydrophilic groups can not only retard the directly bound water molecules but also affect indirectly bound water by stabilizing hydrogen bonds among interfacial water molecules. © 2020 American Institute of Physics Inc.. All rights reserved.
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	American Institute of Physics Inc.
WOS记录号	WOS:000575398300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115310]
专题	理学院
作者单位	1.Department of Physics, Lanzhou University of Technology, Lanzhou; 730050, China 2.Zhejiang Province Key Laboratory of Quantum Technology and Device, Institute of Quantitative Biology, Department of Physics, Zhejiang University, Hangzhou; 310027, China;
推荐引用方式 GB/T 7714	Tian, Ranran,Hu, Guorong,Ou, Xinwen,et al. Dynamic behaviors of interfacial water on the self-assembly monolayer (SAM) heterogeneous surface[J]. Journal of Chemical Physics,2020,153(12).
APA	Tian, Ranran,Hu, Guorong,Ou, Xinwen,Luo, Mengbo,&Li, Jingyuan.(2020).Dynamic behaviors of interfacial water on the self-assembly monolayer (SAM) heterogeneous surface.Journal of Chemical Physics,153(12).
MLA	Tian, Ranran,et al."Dynamic behaviors of interfacial water on the self-assembly monolayer (SAM) heterogeneous surface".Journal of Chemical Physics 153.12(2020).