Surface tension of liquid marbles

Bormashenko, Edward; Pogreb, Roman; Whyman, Gene; Musin, Albina

doi:10.1016/j.colsurfa.2009.09.027

Cited by 117 publications

(160 citation statements)

References 32 publications

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“…Liquid marbles were prepared as described earlier [17][18][19][20][21][22][23]. 20 lL water and water/ethanol solution drops were deposited with a precise micro-dosing syringe onto a superhydrophobic surface, prepared by the hot embossing process with use of a polyethylene substrate and PTFE nanobeads, as described in Ref.…”

Section: Methodsmentioning

confidence: 99%

Formation of liquid marbles and wetting transitions

Bormashenko¹,

Balter²,

Aurbach³

2012

Journal of Colloid and Interface Science

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Section: Methodsmentioning

confidence: 99%

Formation of liquid marbles and wetting transitions

Bormashenko¹,

Balter²,

Aurbach³

2012

Journal of Colloid and Interface Science

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“…11,12 The adsorption of particles to the fluid interface leads to an effective surface tension γ eff of the liquid marble, which may be different to that of the bare water surface due to the capillary forces between the interfacial particles. [13][14][15] As a result, the mechanical and dynamic properties of the liquid marbles depend significantly on the particle type coating the droplet surface. 13 The manipulation of liquid marbles, either achieving directional motion or controlled opening/closing of the particle shell, plays an important role in their applications.…”

Section: Introductionmentioning

confidence: 99%

Switchable Opening and Closing of a Liquid Marble via Ultrasonic Levitation

Zang¹,

Li²,

Chen³

et al. 2015

Langmuir

109

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Liquid marbles have promising applications in the field of microreactors, where the opening and closing of their surfaces plays a central role. We have levitated liquid water marbles using an acoustic levitator and, thereby, achieved the manipulation of the particle shell in a controlled manner. Upon increasing the sound intensity, the stable levitated liquid marble changes from a quasi-sphere to a flattened ellipsoid. Interestingly, a cavity on the particle shell can be produced on the polar areas, which can be completely healed when decreasing the sound intensity, allowing it to serve as a microreactor. The integral of the acoustic radiation pressure on the part of the particle surface protruding into air is responsible for particle migration from the center of the liquid marble to the edge. Our results demonstrate that the opening and closing of the liquid marble particle shell can be conveniently achieved via acoustic levitation, opening up a new possibility to manipulate liquid marbles coated with non-ferromagnetic particles.

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“…The marble volume was 10 µl. The effective surface tension γ of the PVDF-coated marbles was established [24] as 75 erg/cm 2 , close to that of pure water.…”

Section: Methodsmentioning

confidence: 62%

Electrically Deformable Liquid Marbles

Bormashenko¹,

Pogreb²,

Stein³

et al. 2011

Journal of Adhesion Science and Technology

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Liquid marbles, which are droplets coated with a hydrophobic powder, were exposed to a uniform electric field. It was established that a threshold value of the electric field, 15 cgse, should be surmounted for deformation of liquid marbles. The shape of the marbles was described as a prolate spheroid. The semi-quantitative theory describing deformation of liquid marbles in a uniform electric field is presented. The scaling law relating the radius of the contact area of the marble to the applied electric field shows a satisfactory agreement with the experimental data.

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Surface tension of liquid marbles

Cited by 117 publications

References 32 publications

Formation of liquid marbles and wetting transitions

Formation of liquid marbles and wetting transitions

Switchable Opening and Closing of a Liquid Marble via Ultrasonic Levitation

Electrically Deformable Liquid Marbles

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