Probing Liquid Drop Induced Deformation on Soft Solids Using Dual-Wavelength Reflection Interference Contrast Microscopy

Autor: Surjyasish Mitra, Sirshendu Misra, Tuan Tran, Sushanta K. Mitra
Rok vydání: 2022
Předmět:
Zdroj: Langmuir. 38:7750-7758
ISSN: 1520-5827
0743-7463
Popis: A liquid drop resting on a soft solid deforms the surface at the three-phase contact line. The surface deformation, also called "wetting ridge", varies in size from nanoscales to microscales, depending on the elasticity and thickness of the soft layer. In this work, we probe how surface elasticity and coating thickness influences normal and tangential surface deformation profiles induced by a sessile liquid drop using dual-wavelength reflection interference contrast microscopy. Furthermore, we experimentally verify the appropriate characteristic length scale, which closely describes the ridge profiles on both thick and thin soft layers for two different surface elasticities.
Databáze: OpenAIRE