Stable Air Plastron Prolongs Biofluid Repellency of Submerged Superhydrophobic Surfaces.

ABSTRACT: Superhydrophobic surfaces find applications in numerous biomedical scenarios, requiring the repellence of biofluids and biomolecules. Plastron, the trapped air between a superhydrophobic surface and a wetting liquid, plays a pivotal role in biofluid repellency. A key challenge, however, is the often short-lived plastron stability in biofluids and the lack of knowledge surrounding it. Plastron stability refers to the duration for which a surface remains in the Cassie state before transitioning to the fully wetting Wenzel state. Here, a submersion test with real-time optical monitoring is used to determine the plastron lifetime of different superhydrophobic surfaces upon immersion in various biofluids. We find that biofluids of all types exhibit shorter plastron lifetimes compared to pure wa

SUBMITTER: Awashra M 

PROVIDER: S-EPMC11780736 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature