| Autor: |
Mukesh Kumar, Maheshwar Gopu, Senthan Pugalneelam Parameswaran, Prerak Joshi, Dileep Mampallil |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
JCIS Open, Vol 13, Iss , Pp 100101- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-934X |
| DOI: |
10.1016/j.jciso.2023.100101 |
| Popis: |
Evaporation can drive initially homogeneous multiphase liquid systems out of equilibrium to induce liquid-liquid phase separation (LLPS). Here, we demonstrate evaporative LLPS in microfluidic-generated emulsion microdroplets of polymer mixtures. The evaporation produces distinct polymer phases within the microdroplets. Phase separation occurs even with polymer combinations that do not form distinct phases in sessile droplet evaporation. We attribute this aspect to evaporation-driven solutal Marangoni flows and the interface capture accumulating the nuclei at the apex where the evaporation rate is the maximum. A fast coalescence and growth of the accumulated polymer nuclei occurs inside the droplets, unlike the capillary-flow-induced spread-out of the nuclei along the contact line in sessile drops. Our method of evaporation of the droplet cluster may facilitate studying LLPS in volume-limited environments and have implications for understanding LLPS in biological systems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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