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The phase transition and phase distribution in an all-aqueous sessile drop containing polyethylene glycol (PEG) and dextran is studied. Evaporation of water triggers the formation of dextran-rich droplets close to… Click to show full abstract
The phase transition and phase distribution in an all-aqueous sessile drop containing polyethylene glycol (PEG) and dextran is studied. Evaporation of water triggers the formation of dextran-rich droplets close to the contact line of the drop that subsequently migrate towards the drop center. The likely reason for the droplet migration is Marangoni convection due to stresses at the interface between the dextran-rich droplets and the surrounding liquid.
Keywords:
evaporating aqueous;
separation evaporating;
phase separation;
sessile drops;
phase;
aqueous sessile
Journal Title: Soft matter
Year Published: 2022
Link to full text (if available)
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Journal Title: Soft matter
Year Published: 2022
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!