Hierarchical gecko-inspired nanohairs with a high aspect ratio induced by nanoyielding
Hierarchical gecko-inspired nanohairs with a high aspect ratio induced by nanoyielding
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DOI：
10.1039/c2sm07319f
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发表时间：
2012-01-01
期刊：
影响因子：
3.4
通讯作者：
Cho, Kilwon
中科院分区：
文献类型：
--
作者：
Lee, Dong Yun;Lee, Dae Ho;Cho, Kilwon
We present a simple method for fabricating hierarchical polymeric nanohairs using a multi-branched anodic aluminum oxide (AAO) template prepared by two-step anodization and barrier layer thinning processes. Combined with nanohair yielding of a polymeric material during peeling-off from the hydrophobically modified AAO template, elongated hierarchical nanohairs with a high aspect ratio were fabricated without fiber collapse, which showed excellent adhesive and frictional properties compared to other structures such as single-level nanohairs and hierarchical nanohairs with a low aspect ratio. Furthermore, this surface showed remarkable superhydrophobic properties similar to those of natural gecko foot hairs.
