Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1021/acs.jpclett.1c01937

Аннотация: While the curvature of the classical liquid surfaces exhibits only a weak temperature dependence, we demonstrate here a reversible temperature-tunable concave–convex shape switching in capillary-contained, surfactant-decorated, oil–water interfaces. The observed switching gives rise to a concave–convex shape transition, which takesПоказать полностьюplace as a function of the width of the containing capillary. This apparent violation of Young's equation results from a hitherto-unreported sharp reversible hydrophobic–hydrophilic transition of the glass capillary walls. The transition is driven by the interfacial freezing effect, which controls the balance between the competing surfactants' adsorption on, and consequent hydrophobization of, the capillary walls and their incorporation into the interfacially frozen monolayer. Since capillary wetting by surfactant solutions is fundamental for a wide range of technologies and natural phenomena, the present observations have important implications in many fields, from fluid engineering to biology, and beyond.

Журнал: Journal of Physical Chemistry Letters

Выпуск журнала: Т.12, №29

Номера страниц: 6834-6839

ISSN журнала: 19487185

• Shool Lee (Physics Department & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel)
• Butenko Alexander V. (Physics Department & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel)
• Liber Shir R. (Physics Department & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel)
• Rabin Yitzhak (Physics Department & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel)
• Sloutskin Eli (Physics Department & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel)

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