Roy, P.K.; Shoval, S.; Dombrovsky, L.A.; Bormashenko, E. Oscillatory Reversible Osmotic Growth of Sessile Saline Droplets on a Floating Polydimethylsiloxane Membrane. Fluids2021, 6, 232.
Roy, P.K.; Shoval, S.; Dombrovsky, L.A.; Bormashenko, E. Oscillatory Reversible Osmotic Growth of Sessile Saline Droplets on a Floating Polydimethylsiloxane Membrane. Fluids 2021, 6, 232.
Roy, P.K.; Shoval, S.; Dombrovsky, L.A.; Bormashenko, E. Oscillatory Reversible Osmotic Growth of Sessile Saline Droplets on a Floating Polydimethylsiloxane Membrane. Fluids2021, 6, 232.
Roy, P.K.; Shoval, S.; Dombrovsky, L.A.; Bormashenko, E. Oscillatory Reversible Osmotic Growth of Sessile Saline Droplets on a Floating Polydimethylsiloxane Membrane. Fluids 2021, 6, 232.
Abstract
We report cyclic growth/retraction phenomena observed for saline droplets placed on the cured PDMS membrane with the thickness of 7.8±0.1 µm floating on pure water surface. Osmotic mass transport across the micro-scaled floating PDMS membrane provided the growth of the sessile saline droplets followed by evaporation of the saline droplets. The observed growth/retraction cycle was reversible. The model of the osmotic mass transfer across the cured PDMS membrane is suggested. The model explains semi-quantitatively the time evolution of a droplet.
Keywords
osmotic membrane; Polydimethylsiloxane; saline droplet; mass transport; evaporation; reversible cycle.
Subject
Physical Sciences, Acoustics
Copyright:
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