Water-COOH Composite Structure with Enhanced Hydrophobicity Formed by Water Molecules Embedded into Carboxyl-Terminated Self-Assembled Monolayers
文献类型：期刊论文
| 作者 | Guo, P; Tu, YS; Yang, JR; Wang, CL; Sheng, N; Fang, HP |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2015 |
| 卷号 | 115期号:18页码:— |
| 关键词 | CHEMICAL FORCE MICROSCOPY ORGANIC-SURFACES DYNAMICS SIMULATIONS PROTEIN ADSORPTION QUANTUM-MECHANICS SILICON SURFACES ACID MONOLAYERS CELL-ADHESION GOLD SURFACES LIQUID WATER |
| ISSN号 | 0031-9007 |
| 通讯作者 | Guo, P (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China. |
| 英文摘要 | By combining molecular dynamics simulations and quantum mechanics calculations, we show the formation of a composite structure composed of embedded water molecules and the COOH matrix on carboxyl-terminated self-assembled monolayers (COOH SAMs) with appropriate packing densities. This composite structure with an integrated hydrogen bond network inside reduces the hydrogen bonds with the water above. This explains the seeming contradiction on the stability of the surface water on COOH SAMs observed in experiments. The existence of the composite structure at appropriate packing densities results in the two-step distribution of contact angles of water droplets on COOH SAMs, around 0 degrees and 35 degrees, which compares favorably to the experimental measurements of contact angles collected from forty research articles over the past 25 years. These findings provide a molecular-level understanding of water on surfaces (including surfaces on biomolecules) with hydrophilic functional groups. |
| 语种 | 英语 |
| WOS记录号 | WOS:000363507300005 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25097]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Guo, P,Tu, YS,Yang, JR,et al. Water-COOH Composite Structure with Enhanced Hydrophobicity Formed by Water Molecules Embedded into Carboxyl-Terminated Self-Assembled Monolayers[J]. PHYSICAL REVIEW LETTERS,2015,115(18):—. |
| APA | Guo, P,Tu, YS,Yang, JR,Wang, CL,Sheng, N,&Fang, HP.(2015).Water-COOH Composite Structure with Enhanced Hydrophobicity Formed by Water Molecules Embedded into Carboxyl-Terminated Self-Assembled Monolayers.PHYSICAL REVIEW LETTERS,115(18),—. |
| MLA | Guo, P,et al."Water-COOH Composite Structure with Enhanced Hydrophobicity Formed by Water Molecules Embedded into Carboxyl-Terminated Self-Assembled Monolayers".PHYSICAL REVIEW LETTERS 115.18(2015):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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