Role of Dissolved Gas in Optical Breakdown of Water: Differences between Effects Due to Helium and Other Gases

Bunkin, N. F.; Ninham, Barry W.; Бабенко, В. А.; Suyazov, N. V.; Sychev, A. A.

doi:10.1021/jp101657f

Cited by 25 publications

(19 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It confirms a hypothesis about the mechanism of the bubston nucleation, first formulated in Ref. [19]: the centers for such nucleation are the Coulomb complexes formed by ions and gas molecules, dissolved in a liquid. Now we can formulate some intermediate inferences.…”

Section: Determination Of the Bulk Density Of Bubston Clusterssupporting

confidence: 87%

Long‐living nanobubbles of dissolved gas in aqueous solutions of salts and erythrocyte suspensions

Bunkin

Ninham

Ignatiev³

et al. 2010

Journal of Biophotonics

View full text Add to dashboard Cite

Results of experiments combining laser modulation interference microscopy and Mueller matrix scatterometry show that macroscopic scatterers of light are present in liquids free of external solid impurities. Experimental data on distilled water and aqueous NaCl solutions of various concentrations as well as physiological saline solution are reported. The experimental data can be interpreted by using a model of micron-scale clusters composed of polydisperse air nanobubbles having effective radii of 70-100 nm. Their concentration increases with the growth of ionic content. We hypothesize that under certain conditions those clusters of nanobubbles can affect the erythrocyte structure.

show abstract

Section: Determination Of the Bulk Density Of Bubston Clusterssupporting

confidence: 87%

Long‐living nanobubbles of dissolved gas in aqueous solutions of salts and erythrocyte suspensions

Bunkin

Ninham

Ignatiev³

et al. 2010

Journal of Biophotonics

View full text Add to dashboard Cite

show abstract

“…[14][15][16][17][18][19][20] contain a direct experimental proof of the bubston existence in an equilibrium aqueous solution of salts, saturated by dissolved air. However, key evidence supporting this hypothesis was inferred from observations of low-threshold laser-induced breakdown in water and aqueous electrolytic solutions that were transparent to the laser beams employed [21][22][23][24][25][26]. Laser-induced breakdown results from development of electron avalanches inside separate bubstons followed by cluster coalescence into a large bubble (usually called cavitation bubble).…”

Section: Statement Of the Problem Introductionmentioning

confidence: 99%

Structure of the nanobubble clusters of dissolved air in liquid media

et al. 2011

View full text Add to dashboard Cite

A qualitative model of the nucleation of stable bubbles in water at room temperature is suggested. This model is completely based on the property of the affinity of water at the nanometer scale; it is shown that under certain conditions the extent of disorder in a liquid starts growing, which results in a spontaneous decrease of the local density of the liquid and in the formation of nanometer-sized voids. These voids can serve as nuclei for the following generation of the so-called bubstons (the abbreviation for bubbles, stabilized by ions). The model of charging the bubstons by the ions, which are capable of adsorption, and the screening by a cloud of counter-ions, which are incapable of adsorption, is analyzed. It was shown that, subject to the charge of bubston, two regimes of such screening can be realized. At low charge of bubston the screening is described in the framework of the known linearized Debye-Huckel approach, when the sign of the counterion cloud preserves its sign everywhere in the liquid surrounding the bubston, whereas at large charge this sign is changed at some distance from the bubston surface. This effect provides the mechanism of the emergence of two types of compound particles having the opposite polarity, which leads to the aggregation of such compound particles by a ballistic kinetics.

show abstract

“…The same principle of field-induced self-assembly can be applied to bubbles stabilized by ions in aqua solutions of electrolytes 52 – 55 , or generated by intensive electric fields 56 , 57 . This mechanism may be utilized for novel technologies of deep degassing of aqua solutions 58 . However, such studies are beyond the scope of the present paper and should be considered in future works.…”

Section: Discussionmentioning

confidence: 99%

Tunable two-dimensional assembly of colloidal particles in rotating electric fields

Yakovlev

Komarov

Zaytsev

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Tunable interparticle interactions in colloidal suspensions are of great interest because of their fundamental and practical significance. In this paper we present a new experimental setup for self-assembly of colloidal particles in two-dimensional systems, where the interactions are controlled by external rotating electric fields. The maximal magnitude of the field in a suspension is 25 V/mm, the field homogeneity is better than 1% over the horizontal distance of 250 μm, and the rotation frequency is in the range of 40 Hz to 30 kHz. Based on numerical electrostatic calculations for the developed setup with eight planar electrodes, we found optimal experimental conditions and performed demonstration experiments with a suspension of 2.12 μm silica particles in water. Thanks to its technological flexibility, the setup is well suited for particle-resolved studies of fundamental generic phenomena occurring in classical liquids and solids, and therefore it should be of interest for a broad community of soft matter, photonics, and material science.

show abstract

Role of Dissolved Gas in Optical Breakdown of Water: Differences between Effects Due to Helium and Other Gases

Cited by 25 publications

References 64 publications

Long‐living nanobubbles of dissolved gas in aqueous solutions of salts and erythrocyte suspensions

Long‐living nanobubbles of dissolved gas in aqueous solutions of salts and erythrocyte suspensions

Structure of the nanobubble clusters of dissolved air in liquid media

Tunable two-dimensional assembly of colloidal particles in rotating electric fields

Contact Info

Product

Resources

About