ArticleProceedings of the National Academy of Sciences of the United States of America2025
Chemically active wetting.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- What is active wetting?The European physical journal. E, Soft matter · 2026Review
- Mechanochemical feedback between confinement and actin crosslinking drives the shape dynamics of liquid-like droplets.Nature communications · 2026Article
- Morphodynamics of surface-attached active drops.Nature communications · 2026Article
- Insights into de-mixing and morphology modulation in coacervate-membrane interactions from integrating experiments and simulations.Communications chemistry · 2025Article
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Authors and funding
4 authors.
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Abstract
Wetting of liquid droplets on passive surfaces is ubiquitous in our daily lives, and the governing physical laws are well understood. When surfaces become active, however, the governing laws of wetting remain elusive. Here, we propose chemically active wetting as a class of active systems where the surface is active due to a binding process that is maintained away from equilibrium. We derive the corresponding nonequilibrium thermodynamic theory and show that active binding fundamentally changes the wetting behavior, leading to steady, nonequilibrium states with droplet shapes reminiscent of a pancake or a mushroom. The origin of such anomalous shapes can be explained by mapping to electrostatics, where pairs of binding sinks and sources correspond to electrostatic dipoles along the triple line. This is an example of a more general analogy, where localized chemical activity gives rise to a multipole field of the chemical potential. The underlying physics is relevant for cells, where droplet-forming proteins can bind to membranes accompanied by the turnover of biological fuels.
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