Gas Marbles: Much Stronger than Liquid Marbles

Timounay, Yousra; Pitois, Olivier; Rouyer, Florence

doi:10.1103/physrevlett.118.228001

Cited by 26 publications

(17 citation statements)

References 22 publications

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“…Moreover, no bursting/collapse was observed during the experiments, until extreme conditions were reached. Further experiments will concern gas marbles’ external layer permeability for gasses with potential use in gas storage [ 99 ].…”

Section: Liquid Marbles’ Applicationsmentioning

confidence: 99%

Liquid Marbles: From Industrial to Medical Applications

et al. 2018

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Liquid marbles are versatile structures demonstrating a pseudo-Leidenfrost wetting regime formed by encapsulating microscale volumes of liquid in a particle shell. The liquid core is completely separated from the exterior through air pockets. The external phase consists of hydrophobic particles, in most cases, or hydrophilic ones distributed as aggregates. Their interesting features arise from the double solid-fluid character. Thus, these interesting formations, also known as “dry waters”, have gained attention in surface science. This review paper summarizes a series of proposed formulations, fabrication techniques and properties, in correlation with already discovered and emerging applications. A short general review of the surface properties of powders (contact angle, superficial tension) is proposed, followed by a presentation of liquid marbles’ properties (superficial characteristics, elasticity, self-propulsion etc.). Finally, applications of liquid marbles are discussed, mainly as helpful and yet to be exploited structures in the pharmaceutical and medical field. Innovative pharmaceutical forms (Pickering emulsions) are also means of use taken into account as applications which need further investigation.

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Section: Liquid Marbles’ Applicationsmentioning

confidence: 99%

Liquid Marbles: From Industrial to Medical Applications

et al. 2018

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“…Relying on advanced morphometric approaches 26 is perhaps a possibility in this direction. Also, rendering the liquid bridges more resistant to break-up 27 might be an interesting option.…”

Section: Discussionmentioning

confidence: 99%

Control of evaporation by geometry in capillary structures. From confined pillar arrays in a gap radial gradient to phyllotaxy-inspired geometry

Chen

Duru

Joseph

et al. 2017

Sci Rep

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Evaporation is a key phenomenon in the natural environment and in many technological systems involving capillary structures. Understanding the evaporation front dynamics enables the evaporation rate from microfluidic devices and porous media to be finely controlled. Of particular interest is the ability to control the position of the front through suitable design of the capillary structure. Here, we show how to design model capillary structures in microfluidic devices so as to control the drying kinetics. This is achieved by acting on the spatial organization of the constrictions that influence the invasion of the structure by the gas phase. Two types of control are demonstrated. The first is intended to control the sequence of primary invasions through the pore space, while the second aims to control the secondary liquid structures: films, bridges, etc., that can form in the region of pore space invaded by the gas phase. It is shown how the latter can be obtained from phyllotaxy-inspired geometry. Our study thus opens up a route toward the control of the evaporation kinetics by means of tailored capillary structures.

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“…Our particulate membrane consists in a monolayer of micrometric particles bridging the two interfaces of the thin liquid film. Such gas marbles have barely been investigated so far, yet, they exhibit interesting mechanical features due to the cohesion in the shell induced by the attractive interactions between the particles 19 . Consequently, such objects can sustain a significant overpressure before inflating and their collapse pressure is higher (∼ 10 times greater) than the collapse pressure reported for bubbles/drops delimited by one interface.…”

Section: Low Gas Permeability Of Particulate Films Slows Down the Agimentioning

confidence: 99%

“…1 a and b are side and top views of a gas marble (D p = 250) and c shows the experimental set up used to study the behavior of gas marbles in air during inflation or deflation. d and e are sketches of the particle shell at the scale of the particles adapted from 19 . Figure 2 shows an example of a plot of the pressure inside a gas marble relative to the atmospheric pressure ∆P = P − P atm as a function of time.…”

Section: Low Gas Permeability Of Particulate Films Slows Down the Agimentioning

confidence: 99%

Low gas permeability of particulate films slows down the aging of gas marbles

Timounay

Lorenceau

et al. 2017

Soft Matter

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Introducing solid particles into liquid films drastically changes their properties: "gas marbles" can resist overpressure and underpressure ten times larger than their pure liquid counterparts - also known as soap bubbles - before deforming. Such gas marbles can therefore prove to be useful as gas containers able to support stresses. Yet, as their liquid counterparts, they can undergo gas transfer, which can reduce the scope of their applications. However, their permeability has never been characterized. In this paper, we measure the gas permeability of gas marbles through dedicated experiments. Our results show that particulate films are less permeable to gas than their pure liquid counterparts. We attribute this limited overall gas flux to the particles that reduce the surface area through which gas diffuses.

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Gas Marbles: Much Stronger than Liquid Marbles

Cited by 26 publications

References 22 publications

Liquid Marbles: From Industrial to Medical Applications

Liquid Marbles: From Industrial to Medical Applications

Control of evaporation by geometry in capillary structures. From confined pillar arrays in a gap radial gradient to phyllotaxy-inspired geometry

Low gas permeability of particulate films slows down the aging of gas marbles

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