The Salvinia Paradox: Superhydrophobic Surfaces with Hydrophilic Pins for Air Retention Under Water
The Salvinia Paradox: Superhydrophobic Surfaces with Hydrophilic Pins for Air Retention Under Water
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DOI：
10.1002/adma.200904411
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发表时间：
2010-06-04
影响因子：
29.4
通讯作者：
Bohn, Holger F.
中科院分区：
文献类型：
--
作者：
Barthlott, Wilhelm;Schimmel, Thomas;Bohn, Holger F.
一种新的机制，长期空气滞留在水下被发现在复杂的表面设计的水蕨。它的浮叶均匀地覆盖着复杂的疏水毛，当淹没在水中时，它保留了一层空气。令人惊讶的是，毛发的末端细胞是亲水性的。这些亲水贴片通过固定空气-水界面来稳定空气层。这种“Salvinia效应”提供了一个创新的概念，以开发具有长期空气保持能力的仿生表面，用于水下应用。
A novel mechanism for long-term air retention under water is found in the sophisticated surface design of the water fern Salvinia. Its floating leaves are evenly covered with complex hydrophobic hairs retaining a layer of air when submerged under water. Surprisingly the terminal cells of the hairs are hydrophilic. These hydrophilic patches stabilize the air layer by pinning the air water interface. This "Salvinia Effect" provides an innovative concept to develop biomimetic surfaces with long-term air-retention capabilities for under water applications.