Lee, Young A. Oh, Chan Young Park, Sang Jin Yoo, Pil J. Moon, Myoung-Woon 2024-08-26T01:00:30Z 2024-08-26T01:00:30Z 2024-08-22 2024-05 https://pubs.kist.re.kr/handle/201004/150503 As a material-independent adhesive coating agent with excellent functionality on interfaces of materials, polydopamine (PDA) has been widely applicable in bioengineering, environment, and energy fields. Conventional coating methods using dopamine (DA) solutions suffer from slow deposition rates, hindering the attainment of adequate thickness and durability. This work introduces a technique involving rapid capillary-induced solution infusion and in-air polymerization to overcome these limitations. By immersing nanostructured surfaces for just 10 s into the solution, the DA solution is uniformly infused onto the surface, and distributed evenly over the nanostructured surfaces. Polymerization is facilitated by oxygen diffusion from the air, resulting in the formation of a conformal coating up to a micrometer thick. These PDA coatings exhibit persistent superhydrophilicity with water contact angle below 10 degrees and maintain resistance to abrasion, sonication, and oil fouling. Additionally, when applied to microfiber textiles, the PDA coating leads to excellent underwater oil repellency. Our method holds promise for compatibility with various wet-based coating techniques such as drop casting, spraying, spin coating, or ink-jet printing, opening avenues for versatile applications in diverse fields. English Elsevier Superhydrophilic conformal polydopamine coating on nanostructured surface formed by capillary-induced solution infusion Article 10.1016/j.surfin.2024.104344 1 Surfaces and Interfaces, v.48 Surfaces and Interfaces 48 Y scie scopus 001287369200001 2-s2.0-85190236911 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article HYDROPHOBIC RECOVERY CHEMISTRY POLYDIMETHYLSILOXANE CELL Conformal polydopamine coating Capillary-induced solution infusion In-air polymerization Superhydrophilicity Oil repellency Low sulfur fuel oil (LSFO)