Wettability of dragonfly wings: the structure detection and theoretical modeling
Wettability of dragonfly wings: the structure detection and theoretical modeling
复制标题
蜻蜓翅膀的润湿性：结构检测和理论建模
DOI：
10.1002/sia.5105
复制
发表时间：
2013-02-01
影响因子：
1.7
通讯作者：
Feng, Xizeng
中科院分区：
文献类型：
--
作者：
Gao, Chun-Ying;Meng, Gui-Xian;Feng, Xizeng
Hydrophobic surfaces have gained extensive attention in recent decades for their potential applications. The hydrophobic properties of dragonfly's (Pantala flavescens) wings were measured, and the water contact angles (WCAs) of the distal and basal part of a dragonfly's wing were 134.9° and 125.8°, respectively. Images obtained by optical microscopy and scanning electron microscopy showed the microstructures and nanostructures on the wing surface. Microstructures appeared as cell block patterns, and the size of the blocks decreased from the basal to distal part. However, no significant differences of chemical composition between the two parts were detected by X‐ray photoelectron spectroscopy. To understand the correlation between the structures and WCA, a double roughness structure model was built theoretically with simplified lattice patterns, and the theoretical model was well fitted with empirical wettability of the dragonfly's wing. Copyright © 2012 John Wiley & Sons, Ltd.
