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Updated: Apr 19, 2026
Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
Published on: November 14, 2025
Bio-inspired low frictional surfaces having micro-dimple arrays prepared with honeycomb patterned porous films as wet
1Graduate School of Engineering and ‡Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University , 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, Japan.
Abstract:
Some kinds of snakes have micro-dimple arrays on their skins and show low frictional properties. Cost-effective and simple preparation methods of surfaces having micro-dimple arrays without burrs have been required. In this study, micro-dimple arrays were successfully prepared on aluminum plates and pipes by using honeycomb patterned porous films as wet etching masks. Resulting surfaces having 5 and 8 μm dimple diameters show low frictional coefficients compared with polished surfaces at a fluid lubrication regime.
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