Watching water nanodrops spread themselves thin
Peer-Reviewed Publication
Updates every hour. Last Updated: 2-Nov-2026 01:18 ET (2-Nov-2026 06:18 GMT/UTC)
Researchers at the Institute of Industrial Science, The University of Tokyo, have determined the molecular origin of line tension for a water nanodroplet on a surface. This tension is the force along the droplet edge where liquid, solid, and gas phases meet. Computational studies showed that at complete wetting, collapse of tetrahedral order in liquid water causes the line tension to change sign. An ice bilayer did not wet a hydrophilic surface, showing that local order can outweigh surface chemistry.
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