Liquid marble clearance and restoration via gas bubble insertion and bursting
| Autor: | Tuck Wah Ng, Hassan Ali Abid, So Hung Huynh, Jian Wern Ong, Eric Shen Lin, Zhixiong Song, Oi Wah Liew, Dwayne Chung Kim Chung |
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| Rok vydání: | 2021 |
| Předmět: |
Coalescence (physics)
Materials science Bubble Drop (liquid) Shell (structure) 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Volume (thermodynamics) Coating engineering Particle Thin film Composite material 0210 nano-technology |
| Zdroj: | Soft Matter. 17:2512-2517 |
| ISSN: | 1744-6848 1744-683X |
| DOI: | 10.1039/d0sm02117b |
| Popis: | There is hitherto a lack of a simple way to disrupt the coating of particles from liquid marbles in order to introduce additional reagents. Here, a 40 μL liquid marble, created on a superhydrophobic substrate with a 2 mm hole, forms an overhead and overhanging liquid component from which a single gas bubble of up to 28 μL volume could be introduced via the latter. This caused a localized clearing of the particle shell at the apical region of the overhead component because the particles could not be energetically sustained at the thin film region of the bubble. The subsequent dispensation of 5 μL of an external liquid directly onto the shell-free apex of the liquid marble allowed the coalescence of the two liquid bodies, bubble rupture, and restoration of complete particle shell encapsulation. The addition of the liquid via the overhanging component was alternatively found incapable of increasing the size of the overhead drop component. The localized bubble-actuated transient shell clearance at the apex of the liquid marble to allow the addition of reagents shown here portends new vistas for liquid marbles to be used in biomedical applications. |
| Databáze: | OpenAIRE |
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