Formation of liquid marbles and wetting transitions

Bormashenko, Edward; Balter, Revital; Aurbach, Doron

doi:10.1016/j.jcis.2012.06.023

Cited by 23 publications

(26 citation statements)

References 66 publications

(65 reference statements)

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“…Interfaces similar to that of Fig.1(a) have actually already been observed experimentally using liquid marbles floating on liquid substrates [33,34]. However, to our knowledge no analysis of slip has been performed for these interfaces.…”

supporting

confidence: 66%

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

2013

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supporting

confidence: 66%

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

2013

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“…A larger concentration of alcohol promoted the Cassie-Wenzel wetting transition and marbles were not formed, as discussed in ref. 36. The marbles are not hermetically coated by powder; they evaporate as discussed in detail in ref.…”

Section: Methodsmentioning

confidence: 99%

Self-Propulsion of Liquid Marbles: Leidenfrost-like Levitation Driven by Marangoni Flow

Bormashenko

Bormashenko²,

Grynyov³

et al. 2015

J. Phys. Chem. C

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130

156

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“…By increasing the ratio of ethanol or other solvents to water in the solution, the particles change from hydrophobic to hydrophilic (Figures S3 and S4, Supporting Information). This is believed to be due to the gradual decrease of the surface tension of the mixed liquid . When we shake the mixtures of particles and liquid, the particles quickly climb and float on the surface of the liquid for water content no less than 60% in volume (Figure S5, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

“…This is believed to be due to the gradual decrease of the surface tension of the mixed liquid. [ 22 ] When we shake the mixtures of particles and liquid, the particles quickly climb and fl oat on the surface of the liquid for water content no less than 60% in volume ( Figure S5, Supporting Information). We established that there exists a critical concentration of ethanol, and correspondingly a critical surface tension of the water-ethanol solution, above which stable foams can be prepared (ethanol content ≥ 60 vol%).…”

Section: Behavior Of Particles On the Surface Of Various Liquids And mentioning

confidence: 99%

Multifunctional TiO₂‐Based Particles: The Effect of Fluorination Degree and Liquid Surface Tension on Wetting Behavior

Lai

Zhou

Zhang

et al. 2014

Part & Part Syst Charact

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A systematic investigation into the influence of the degree of fluorination on the static and dynamic wetting behavior of TiO2‐based nanobelt (TNB) particles with various liquids is described. The effect of the degree of fluorination and the surface tension of the liquid on the occurrence and stability of liquid marbles, foams or dispersions are studied and the wetting behavior and arrangement of particles at the air–liquid surface are observed. Using contact angle (θ) measurements, the relation between the type of particle‐stabilized material and θ is established. For liquids of relatively high tension like water or formamide which do not wet the fluorinated particles, a powder‐like material (marble) is formed. For polar oils of intermediate tension (35–50 mN m−1), which partially wet the fluorinated particles, stable air‐in‐oil foams can be prepared in which particles form a close‐packed layer enveloping air bubbles. Liquids of relatively low tension, e.g., ethanol or polydimethylsiloxane, wet the particles forming a uniform dispersion and partial sedimentation. By contrast, the as‐prepared hydrophilic TNB particles are rapidly wetted by all the liquids as expected due to their high surface energy. The stable cross‐stacked TNB particles with fluoroalkylsilane (FAS) modification could be a versatile platform in a wide range of applications, especially for fluidic devices (e.g., biofluids, gas sensing, and lab‐on‐a‐chip devices). In a proof‐of‐concept study, the oil–water separation performance of fabrics with chemically stable TNB/FAS coating and the liquid isolation by a TNB/FAS shell for highly sensitive gas sensing or reagent assays are investigated.

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Formation of liquid marbles and wetting transitions

Cited by 23 publications

References 66 publications

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

Self-Propulsion of Liquid Marbles: Leidenfrost-like Levitation Driven by Marangoni Flow

Multifunctional TiO₂‐Based Particles: The Effect of Fluorination Degree and Liquid Surface Tension on Wetting Behavior

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Formation of liquid marbles and wetting transitions

Cited by 23 publications

References 66 publications

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings

Self-Propulsion of Liquid Marbles: Leidenfrost-like Levitation Driven by Marangoni Flow

Multifunctional TiO2‐Based Particles: The Effect of Fluorination Degree and Liquid Surface Tension on Wetting Behavior

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Product

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Multifunctional TiO₂‐Based Particles: The Effect of Fluorination Degree and Liquid Surface Tension on Wetting Behavior