皺状傾斜構造面上における液滴挙動

抄録

Wettability gradient surface is attracted attention from the applications such as microfluidic devices and biochemical testing. However, the substrate is limited to the non-flexible materials such as silicon substrate because the applicability of fabrication processes. In the present study, we fabricated the wrinkled structure on the flexible polymer substrate through the deposition of thin metal film and the release of stretching after deposition, and the gradient structure was fabricated using mask. In addition, the droplet behavior on the gradient wrinkled structure was observed through droplet deposition experiment and found that the droplet deposited on the wrinkled part was moved directed to the wrinkleless part.