Researchers find that millimeter structures improve liquid entrainment

https://phys.org/news/2023-09-millimeter-liquid-entrainment.html

"liquid uptake and liquid drainage after uptake... accommodat larger quantities of liquid with less deviation... easy drainage from unstructured surface or firmly trapped state of micro-structured surface... more uptake lowers friction, promotes dripping... capillary force reduces viscous force... uniform droplet dripping time across viscosity ranges... batch fabrication, packaging, lens and chip modification, toys being painted, nasopharyngeal swabs for virus testing, tires running through puddle, and intestinal villi absorbing nutrients"