Formation of colloidal clusters and chains at the air/water interface

Ruíz-García, Jaime

doi:10.1080/00268979809483169

Cited by 34 publications

(56 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Stabilisation of colloidal particles both in soap-froths and clusters at interparticle distances of the order of microns cannot be interpreted solely in terms of a pair potential with short-ranged repulsion and van der Waals attraction, as in the case of molecular fluids, but also a secondary attractive well plus a long-range repulsive barrier are required [22]. By using two-dimensional particles interacting via a discrete potential as shown in Figure 1, it has been possible to reproduce by Monte Carlo simulation several pattern formations observed in real colloids at the airwater interface [20].…”

Section: Introductionmentioning

confidence: 99%

Molecular Thermodynamics of Adsorption using Discrete-Potential Systems

Jiménez

Santillán

Avendaño

et al. 2008

Oil & Gas Science and Technology - Rev. IFP

View full text Add to dashboard Cite

Résumé -Thermodynamique moléculaire de l'adsorption à l'aide de systèmes à potentiels discrets -Un modèle thermodynamique de fluide basé sur des potentiels discrets a été développé pour décrire l'adsorption sur une surface solide. À l'aide de théories de la perturbation, comme la théorie SAFT (Statistical Associating Fluid Theory), et la théorie DPT (Discrete Potential Theory), en combinaison avec la simulation moléculaire, nous avons formulé une approche bi-dimensionnelle qui permet de décrire des systèmes qui intéressent l'industrie pétrolière, tels les isothermes d'adsorption du CO 2 ou des asphaltènes. Abstract -Molecular Thermodynamics of Adsorption using Discrete-Potential Systems

show abstract

Section: Introductionmentioning

confidence: 99%

Molecular Thermodynamics of Adsorption using Discrete-Potential Systems

Jiménez

Santillán

Avendaño

et al. 2008

Oil & Gas Science and Technology - Rev. IFP

View full text Add to dashboard Cite

show abstract

“…Colloidal particles can be organized into crystal [4] and into structures with clusters and voids [5][6][7][8][9][10]. A system of colloidal particles may undergo different types of phase transitions [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic fluctuation forces

Ivlev

2002

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Two interaction mechanisms of particles in a fluid are proposed on base of forces, mediated by hydrodynamic thermal fluctuations. The first one is similar to the conventional van der Waals interaction, but instead of been mediated by electromagnetic fluctuations, it is mediated by fluctuations of hydrodynamic sound waves. The second one is due to a thermal drift of particles to the region with a bigger effective mass, which is formed by the involved surrounding fluid and depends on an inter-particle distance. The both mechanisms likely can be relevant in interpretation of the observed long-range attraction of colloidal particles, since a set of different experiments shows the attraction energy of the order of k B T and, perhaps, only a fluctuation mechanism of attraction provides this universality.

show abstract

“…In particular, the interfacial deformation close to the particle may be arbitrarily large, the particle itself need not be perfectly spherical, or it may even consist of a many-body configuration lacking any kind of symmetry. 8 To which extent this asymptotic regime is actually observable in a particular experimental realization depends on the precise functional form of Π 1(2) (r) and the values of the constant parameters A m, Bm, and φm entering the solution given by equation (B.10).…”

Section: Appendix B Force Balance In a General Configurationmentioning

confidence: 99%

“…We have used that the dimensionless force parameter ε F is proportional to Q 2 which actually follows from equations (6,8,9), and (17) below. Note that we have simply extrapolated the bulk results for two interacting colloids which cause asymptotically quadrupolar deformations of the director.…”

Section: Asymptotic Director Configuration and Elastic Force Between mentioning

confidence: 99%

See 1 more Smart Citation

Effective interactions of colloids on nematic films

Oettel

Domínguez

Tasinkevych³

et al. 2008

Eur. Phys. J. E

View full text Add to dashboard Cite

Abstract. The elastic and capillary interactions between a pair of colloidal particles trapped on top of a nematic film are studied theoretically for large separations d. The elastic interaction is repulsive and of quadrupolar type, varying as d −5 . For macroscopically thick films, the capillary interaction is likewise repulsive and proportional to d −5 as a consequence of mechanical isolation of the system comprised of the colloids and the interface. A finite film thickness introduces a nonvanishing force on the system (exerted by the substrate supporting the film) leading to logarithmically varying capillary attractions. However, their strength turns out to be too small to be of importance for the recently observed pattern formation of colloidal droplets on nematic films.

show abstract

Formation of colloidal clusters and chains at the air/water interface

Cited by 34 publications

References 16 publications

Molecular Thermodynamics of Adsorption using Discrete-Potential Systems

Molecular Thermodynamics of Adsorption using Discrete-Potential Systems

Hydrodynamic fluctuation forces

Effective interactions of colloids on nematic films

Contact Info

Product

Resources

About