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physics.flu-dyn2025
Rheological Insights from the Oscillation Dynamics of Viscoelastic Sessile Drops
Peyman Rostami, Alfonso A. Castrejón-Pita, Günter K. Auernhammer
This study investigates the oscillation behavior of a sessile drop placed on a hydrophobic substrate subjected to vertical vibrations with varying frequencies and amplitudes. We ex…
physics.flu-dyn2022
Substrate Curvature Curbs the Coffee Ring Effect
John McCarthy, Alfonso Castrejón-Pita, Mokhtar Adda-Bedia +1
"When the liquid phase of a particle-laden droplet evaporates, a ring of solute is typically formed - what has become known as the "coffee ring effect". A key focus of recent work…