Dissolution Arrest and Stability of Particle-Covered Bubbles

by: Manouk Abkarian, Anand B Subramaniam, Shin H Kim, Ryan J Larsen, Seung M Yang, Howard A Stone

Physical Review Letters, Vol. 99, No. 18. (2007)

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Abstract

Experiments show that bubbles covered with monodisperse polystyrene particles, with particle to bubble radius ratios of about 0.1, evolve to form faceted polyhedral shapes that are stable to dissolution in air-saturated water. We perform Surface Evolver simulations and find that the faceted particle-covered bubble represents a local minimum of energy. At the faceted state, the Laplace overpressure vanishes, which together with the positive slope of the bubble pressure-volume curve, ensures phase stability. The repulsive interactions between the particles cause a reduction of the curvature of the gas-liquid interface, which is the mechanism that arrests dissolution and stabilizes the bubbles.

@article{citeulike:2552521, abstract = {Experiments show that bubbles covered with monodisperse polystyrene particles, with particle to bubble radius ratios of about 0.1, evolve to form faceted polyhedral shapes that are stable to dissolution in air-saturated water. We perform Surface Evolver simulations and find that the faceted particle-covered bubble represents a local minimum of energy. At the faceted state, the Laplace overpressure vanishes, which together with the positive slope of the bubble pressure-volume curve, ensures phase stability. The repulsive interactions between the particles cause a reduction of the curvature of the gas-liquid interface, which is the mechanism that arrests dissolution and stabilizes the bubbles.}, author = {Abkarian, Manouk and Subramaniam, Anand B. and Kim, Shin H. and Larsen, Ryan J. and Yang, Seung M. and Stone, Howard A. }, citeulike-article-id = {2552521}, doi = {http://dx.doi.org/10.1103/PhysRevLett.99.188301}, journal = {Physical Review Letters}, keywords = {2007, colloids}, number = {18}, posted-at = {2008-03-18 19:10:02}, priority = {2}, publisher = {APS}, title = {Dissolution Arrest and Stability of Particle-Covered Bubbles}, url = {http://dx.doi.org/10.1103/PhysRevLett.99.188301}, volume = {99}, year = {2007} }

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TY - JOUR ID - citeulike:2552521 L3 - citeulike-article-id:2552521 TI - Dissolution Arrest and Stability of Particle-Covered Bubbles JF - Physical Review Letters VL - 99 IS - 18 PB - APS N2 - Experiments show that bubbles covered with monodisperse polystyrene particles, with particle to bubble radius ratios of about 0.1, evolve to form faceted polyhedral shapes that are stable to dissolution in air-saturated water. We perform Surface Evolver simulations and find that the faceted particle-covered bubble represents a local minimum of energy. At the faceted state, the Laplace overpressure vanishes, which together with the positive slope of the bubble pressure-volume curve, ensures phase stability. The repulsive interactions between the particles cause a reduction of the curvature of the gas-liquid interface, which is the mechanism that arrests dissolution and stabilizes the bubbles. KW - 2007 KW - colloids AU - Abkarian, Manouk AU - Subramaniam, Anand AU - Kim, Shin AU - Larsen, Ryan AU - Yang, Seung AU - Stone, Howard PY - 2007/// UR - http://dx.doi.org/10.1103/PhysRevLett.99.188301 ER -

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