Advanced dynamic-equilibrium model for a nanobubble and a micropancake on a hydrophobic or hydrophilic surface

Yasui, Kyuichi; Tuziuti, Toru; Kanematsu, Wataru; Kato, Kazumi

doi:10.1103/physreve.91.033008

Cited by 48 publications

(57 citation statements)

References 60 publications

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“…They are preferably formed on hydrophobic, rough surfaces, 209 but also occur on hydrophilic substrates. [210][211][212] According to a popular school of thought on their stability, the three-phase contact line is fixed on the substrate by a strong pinning mechanism. Some scientists have even used the term superstability, since the surface bubbles do not seem to be affected by shockwaves 213 and temperatures near the boiling point of water.…”

Section: Bubble Mechanism: the Existential Crisis Of Nanobubblesmentioning

confidence: 99%

Plasma physics of liquids—A focused review

Vanraes

Bogaerts

2018

Applied Physics Reviews

179

118

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The interaction of plasma with liquids has led to various established industrial implementations as well as promising applications, including high-voltage switching, chemical analysis, nanomaterial synthesis, and plasma medicine. Along with these numerous accomplishments, the physics of plasma in liquid or in contact with a liquid surface has emerged as a bipartite research field, for which we introduce here the term "plasma physics of liquids." Despite the intensive research investments during the recent decennia, this field is plagued by some controversies and gaps in knowledge, which might restrict further progress. The main difficulties in understanding revolve around the basic mechanisms of plasma initiation in the liquid phase and the electrical interactions at a plasma-liquid interface, which require an interdisciplinary approach. This review aims to provide the wide applied physics community with a general overview of the field, as well as the opportunities for interdisciplinary research on topics, such as nanobubbles and the floating water bridge, and involving the research domains of amorphous semiconductors, solid state physics, thermodynamics, material science, analytical chemistry, electrochemistry, and molecular dynamics simulations. In addition, we provoke awareness of experts in the field on yet underappreciated question marks. Accordingly, a strategy for future experimental and simulation work is proposed.

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Section: Bubble Mechanism: the Existential Crisis Of Nanobubblesmentioning

confidence: 99%

Plasma physics of liquids—A focused review

Vanraes

Bogaerts

2018

Applied Physics Reviews

179

118

View full text Add to dashboard Cite

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“…For a given gas oversaturation ζ > 0, there exists an equilibrium in which the outflux of gas molecules from the nanobubble due to the large Laplace pressure is compensated by the influx into the bubble due to gas oversaturation, i.e., there is no net flux. Though the flux of gas particles out or into the nanobubble is not spatially uniform along the interface as shown by Weijs et al [25] and Yasui et al [26], the net flux integrated over the whole interface is zero. The contact angle of the surface nanobubble is not given by Young's equation, but determined by the equilibrium,…”

Section: Introductionmentioning

confidence: 98%

Stability of Surface Nanobubbles: A Molecular Dynamics Study

Maheshwari

Hoef

Zhang³

et al. 2016

Langmuir

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The stability and growth or dissolution of a single surface nanobubble on a chemically patterned surface are studied by molecular dynamics simulations of binary mixtures consisting of Lennard-Jones (LJ) particles. Our simulations reveal how pinning of the three-phase contact line on the surface can lead to the stability of the surface nanobubble, provided that the concentration of the dissolved gas is oversaturated. We have performed equilibrium simulations of surface nanobubbles at different gas oversaturation levels ζ > 0. The equilibrium contact angle θ is found to follow the theoretical result of Lohse and Zhang (Phys. Rev. E 2015, 91, 031003(R)), namely, sin θ = ζL/L, where L is the pinned length of the footprint and L = 4γ/P is a capillary length scale, where γ is the surface tension and P is the ambient pressure. For undersaturation ζ < 0 the surface nanobubble dissolves and the dissolution dynamics shows a "stick-jump" behavior of the three-phase contact line.

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“…It is reported that this UFB exists stably for over 1 month [1]. However, the mechanism by which UFB stabilizes in the water remains to be unknown, and several theories have been proposed [1][2][3][4][5][6][7][8][9][10], but a clear mechanism has not yet been established in reality.…”

Section: Introductionmentioning

confidence: 98%

Study of Ultrafine Bubble Stabilization by Organic Material Adhesion

Sugano

Miyoshi

Inazato

2017

JAPANESE JOURNAL OF MULTIPHASE FLOW

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We confirmed the effect of organic material adhesion as ultrafine bubble (UFB) stabilization mechanism. Organic material was added to generate UFB, and the state of UFB particles was investigated by dynamic light scattering method, transmission electron microscope (TEM), resonance mass measurement method. Disappearance of UFB was suppressed by the addition of organic material, and it was confirmed that the organic material adhered to the surface of UFB. We got the conclusion that adhesion of organic material inhibit gas dissolution from bubbles.

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Advanced dynamic-equilibrium model for a nanobubble and a micropancake on a hydrophobic or hydrophilic surface

Cited by 48 publications

References 60 publications

Plasma physics of liquids—A focused review

Plasma physics of liquids—A focused review

Stability of Surface Nanobubbles: A Molecular Dynamics Study

Study of Ultrafine Bubble Stabilization by Organic Material Adhesion

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