Effects of surface wettability on gecko adhesion underwater
文献类型：期刊论文
| 作者 | Peng ZL(彭志龙) ; Wang C(王琮); Chen SH(陈少华); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
|
| 刊名 | COLLOIDS AND SURFACES B-BIOINTERFACES
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 122页码:662-668 |
| 关键词 | Gecko Adhesion Surface Wettability Nano-bubble Capillary Force |
| ISSN号 | 0927-7765 |
| 产权排序 | [Peng, Z. L.; Wang, C.; Chen, S. H.] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 英文摘要 | Recent experiments have shown that gecko adhesion underwater depends significantly on surface wettability. Theoretical models of a gecko seta adhering on different substrates are firstly established in order to disclose such an adhesion mechanism. The results show that the capillary force induced by nano-bubbles between gecko seta and the substrate is the mainly influencing factor. The capillary force exhibits an attractive feature between gecko setae and hydrophobic surfaces underwater. However, it is extremely weak or even repulsive on hydrophilic surfaces underwater. A self-similarly splitting model is further considered to simulate multiple gecko setae on substrates underwater. It is interesting to find that the total capillary force depends significantly on the number of nano-bubble bridges and wettability of substrates. The total force is attractive and increases monotonically with the increase of the splitting number on hydrophobic substrates underwater. However, it decreases drastically or even becomes repulsive on hydrophilic substrates underwater. The present result can not only give a reasonable explanation on the existing experimental observations but also be helpful for the design of novel biomimetic adhesives. (C) 2014 Elsevier B.V. All rights reserved. |
| 学科主题 | Biophysics ; Chemistry ; Materials Science |
| 分类号 | 二类/Q1 |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000343612900083 |
| 资助机构 | The work reported here is supported by NSFC through Grants #11302228, #11125211, #11372317 and the 973 Nano-project (2012CB937500). In addition, the authors give their thanks to the two anonymous reviewers for their helpful and professional suggestions. |
| 公开日期 | 2014-11-27 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49314]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Peng ZL,Wang C,Chen SH,et al. Effects of surface wettability on gecko adhesion underwater[J]. COLLOIDS AND SURFACES B-BIOINTERFACES,2014,122:662-668. |
| APA | Peng ZL,Wang C,Chen SH,&Chen, SH .(2014).Effects of surface wettability on gecko adhesion underwater.COLLOIDS AND SURFACES B-BIOINTERFACES,122,662-668. |
| MLA | Peng ZL,et al."Effects of surface wettability on gecko adhesion underwater".COLLOIDS AND SURFACES B-BIOINTERFACES 122(2014):662-668. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。