PMID- 17385899
OWN - NLM
STAT- MEDLINE
DCOM- 20070612
LR  - 20171116
IS  - 0743-7463 (Print)
IS  - 0743-7463 (Linking)
VI  - 23
IP  - 9
DP  - 2007 Apr 24
TI  - Superior water repellency of water strider legs with hierarchical structures: 
      experiments and analysis.
PG  - 4892-6
AB  - Water striders are a type of insect with the remarkable ability to stand 
      effortlessly and walk quickly on water. This article reports the water repellency 
      mechanism of water strider legs. Scanning electron microscope (SEM) observations 
      reveal the uniquely hierarchical structure on the legs, consisting of numerous 
      oriented needle-shaped microsetae with elaborate nanogrooves. The maximal 
      supporting force of a single leg against water surprisingly reaches up to 152 
      dynes, about 15 times the total body weight of this insect. We theoretically 
      demonstrate that the cooperation of nanogroove structures on the oriented 
      microsetae, in conjunction with the wax on the leg, renders such water 
      repellency. This finding might be helpful in the design of innovative miniature 
      aquatic devices and nonwetting materials.
FAU - Feng, Xi-Qiao
AU  - Feng XQ
AD  - Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR 
      China.
FAU - Gao, Xuefeng
AU  - Gao X
FAU - Wu, Ziniu
AU  - Wu Z
FAU - Jiang, Lei
AU  - Jiang L
FAU - Zheng, Quan-Shui
AU  - Zheng QS
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070327
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Animals
MH  - Body Weight
MH  - Extremities/*anatomy & histology
MH  - Hydrophobic and Hydrophilic Interactions
MH  - Insecta/*anatomy & histology
MH  - Microscopy, Electron, Scanning
MH  - Sensitivity and Specificity
MH  - Surface Properties
MH  - Water/chemistry
EDAT- 2007/03/28 09:00
MHDA- 2007/06/15 09:00
CRDT- 2007/03/28 09:00
PHST- 2007/03/28 09:00 [pubmed]
PHST- 2007/06/15 09:00 [medline]
PHST- 2007/03/28 09:00 [entrez]
AID - 10.1021/la063039b [doi]
PST - ppublish
SO  - Langmuir. 2007 Apr 24;23(9):4892-6. doi: 10.1021/la063039b. Epub 2007 Mar 27.