Through-drop imaging of moving contact lines and contact areas on opaque water-repellent surfaces.

ABSTRACT: A myriad of natural surfaces such as plant leaves and insect wings can repel water and remain unwetted inspiring scientists and engineers to develop water-repellent surfaces for various applications. Those natural and artificial water-repellent surfaces are typically opaque, containing micro- and nano-roughness, and their wetting properties are determined by the details at the actual liquid-solid interface. However, a generally applicable way to directly observe moving contact lines on opaque water-repellent surfaces is missing. Here, we show that the advancing and receding contact lines and corresponding contact area on micro- and nano-rough water-repellent surfaces can be readily and reproducibly quantified using a transparent droplet probe. Combined with a conventional optical microscop

SUBMITTER: Vieira A 

PROVIDER: S-EPMC10053025 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature