Langmuir, Vol.33, No.2, 585-590, 2017
Biomimetic Bubble-Repellent Tubes: Microdimple Arrays Enhance Repellency of Bubbles Inside of Tubes
The adhesion of bubbles underwater remains the greatest cause of malfunctions in applications such as microfluidics, medical devices, and heat exchangers. Recently the combination of oxidization and peeling the top layer of self-organized honeycomb films with an adhesive tape resulted in the formation of an ultra-bubble-repellent and pillared polymer surface structure. However, the fabrication of honeycomb films on the inner, surface of tubes and the formation of structured hydrophilic textures by peeling the top layer of honeycomb films still remain problematic., In this report, a simple fabricatinn technique for producing a honeycomb-pattemed polymer film on the interior of a: tube by dip-coating a polymer solution and, blowing humid air in the tube is described Furthermore, an ultra-bubble, repellent dimple-arrayed structure was fabricated by applying ultrasonicatiorcto the honeyconib structure formed on the interior surface of the tubes.