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A colloidal solution consisting of a suitable dispersion medium, which may be gas, liquid or solid, and the colloidal substance, the disperse phase, which is distributed throughout the dispersion medium.  2, fiche 1, Anglais, - sol

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A hydrophobic colloid has little attraction for water. A solution of this type of colloid is called a sol.  3, fiche 1, Anglais, - sol

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Suspensions of solid particles of colloidal size in liquids are called sols. Suspensions of either solid or liquid particles in a gas are called aerosols. Emulsions are suspensions of liquid droplets in a second liquid. Foams are suspensions of liquid droplets in either a liquid or a solid. For both emulsions and foams the suspended particles are frequently substantially larger than the usual colloidal range and also, in the case of foams, the continuous medium is often so thin as it surrounds the gas bubbles as to be itself in the colloidal state.  4, fiche 1, Anglais, - sol

Fiche 1,  Justifications,  Français

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Des particules qui portent elles-mêmes une charge électrique (ions) ou des charges partielles, attirent les molécules d'eau et s'entourent d'une enveloppe hydratée. Les protéines forment ainsi une solution colloïdale. Lorsqu'elles perdent de l'eau, cette solution appelée sol devient gélatineuse et s'épaissit.  2, fiche 1, Français, - sol

Fiche 1,  Justifications,  Espagnol

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Suspensión coloidal de partículas pequeñas de una sustancia en otra.  1, fiche 1, Espagnol, - sol

Fiche 2,  Justifications,  Anglais

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Nano-silver is a pure de-ionized water with silver(Ag) in suspension. Approximately 80% of the silver is in the form of metallic silver nano-particles. The remaining silver is in ionic form. Though similar to colloidal silver, generally, a colloid is a suspension of particles of from 10 nm to 1 micron in diameter and the silver particles in nano-silver are less than 2 nm in diameter and therefore too small to be considered in "colloidal" suspension. They are rather, in a "nano-suspension, "a much more stable state.  2, fiche 2, Anglais, - nano%2Dsilver

Fiche 2,  Justifications,  Français

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Le nano-argent (nanoargent, «nano-silver» pour les anglophones) est un nanomatériau à base d'atomes d'argent, produit sous forme de nanoparticules par des nanotechnologies. En 2008, selon les producteurs, environ 500 t/an de nano-argent auraient été produites dans le monde, sous forme d'ions argent, de particules d'argent protéinées (silver proteins) ou de colloïdes utilisés comme biocide. [...] À échelle nanométrique, le nano-argent a des propriétés particulières, biocides notamment, que l'industrie pharmaceutique, des pesticides ou agroalimentaire cherchent à utiliser et valoriser. Mais il pose aussi des problèmes de risques en santé-environnement.  2, fiche 2, Français, - nanoargent

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Textile antimicrobien au nano-argent.  3, fiche 2, Français, - nanoargent

Fiche 2,  Justifications,  Espagnol

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La plata es un metal antimicrobiano seguro y eficaz. Particularmente, producto de la nanotecnología, la nanoplata exhibe actividad antimicrobiana germicida potente debido al aumento en el área superficial.  1, fiche 2, Espagnol, - nanoplata

Fiche 3,  Justifications,  Anglais

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Any substance (as an aggregate of atoms or molecules), whether a gas, liquid, or solid, in a fine state of subdivision with particles too small to be visible in an ordinary optical microscope that is dispersed in a continuous gaseous, liquid, or solid medium and does not settle or settles very slowly (as the liquid droplets in fog, solid particles in smoke, bubbles in foam, or gold particles in ruby glass).  2, fiche 3, Anglais, - colloid

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Many colloids occur naturally. Others can be prepared by breaking large pieces of material into smaller pieces, as with a colloid mill... Some colloids can be prepared by condensation methods, in which atoms or molecules are induced to aggregate from solution, or in which atoms or molecules are condensed from the vapor state. There are three important types of colloids : small solid particles having the same internal structure as the bulk solid phase(sulfur suspensions in water), aggregates formed from smaller molecules(soaps in water, and large molecules of colloidal size(proteins and high polymers).  3, fiche 3, Anglais, - colloid

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Compare with "colloidal particle."  4, fiche 3, Anglais, - colloid

Fiche 3,  Justifications,  Français

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Substance dispersée à l'état de particules assez fines pour traverser les filtres usuels, mais ayant des dimensions très supérieures à celles des molécules.  2, fiche 3, Français, - collo%C3%AFde

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Voir aussi «particule colloïdale».  3, fiche 3, Français, - collo%C3%AFde

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

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Referring to a substance in a colloidal state that has a tendency to repel liquids.  1, fiche 4, Anglais, - lyophobic

Fiche 4,  Justifications,  Français

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Se dit des colloïdes qui ne sont pas lyophiles.  2, fiche 4, Français, - lyophobe

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lyophile : se dit d'une substance qui, ayant perdu ses qualités par lyophilisation, peut les retrouver intactes par l'addition du solvant nécessaire.  2, fiche 4, Français, - lyophobe

Fiche 4,  Justifications,  Espagnol

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Dícese de los coloides que no son liófilos.  2, fiche 4, Espagnol, - li%C3%B3fobo

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liófilo: sustancia que al contactar con un medio dispersante, forma espontáneamente una disolución coloidal termodinámicamente estable, debido a la afinidad por medio de sus partículas coloidales.  3, fiche 4, Espagnol, - li%C3%B3fobo

Fiche 5,  Justifications,  Anglais

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A system in which particles of colloidal size of any nature(e. g. solid, liquid or gas) are dispersed in a continuous phase of a different composition(or state).  2, fiche 5, Anglais, - colloidal%20dispersion

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The name dispersed phase for the particles should be used only if they have essentially the properties of a bulk phase of the same composition.  2, fiche 5, Anglais, - colloidal%20dispersion

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Lyophilic colloidal dispersion.  3, fiche 5, Anglais, - colloidal%20dispersion

Fiche 5,  Justifications,  Français

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[...] système dans lequel des particules de dimensions colloïdales de toutes natures (solide, liquide ou gazeuse) sont dispersées dans une phase continue de composition (d'état) différente.  2, fiche 5, Français, - dispersion%20collo%C3%AFdale

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On ne doit utiliser l'expression phase dispersée des particules que si elle possède essentiellement les mêmes propriétés que celles d'une même composition globale.  2, fiche 5, Français, - dispersion%20collo%C3%AFdale

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

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A drilling mud prepared by adding a surfactant to a water-base mud, which changes the colloidal state of the clays from that of complete dispersion to one of controlled flocculation.  1, fiche 6, Anglais, - surfactant%20mud

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These muds were originally designed for use in deep, high-temperature wells, but their many advantages (high chemical and thermal stability, minimum swelling effect on clay-bearing zones, lower plastic viscosity, etc.) may extend their applicability.  1, fiche 6, Anglais, - surfactant%20mud

Fiche 6,  Justifications,  Français

Fiche 6,  Justifications,  Espagnol

Fiche 7,  Justifications,  Anglais

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A lyophilic colloidal system is an ordinary thermodynamically stable solution in which one or more of the dissolved species is in the colloidal state of subdivision.  1, fiche 7, Anglais, - lyophilic%20colloidal%20system

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Since lyophilic systems are thermodynamically stable it is necessary only to bring their components into physical contact and colloid formation will occur spontaneously.  1, fiche 7, Anglais, - lyophilic%20colloidal%20system

Fiche 7,  Justifications,  Français

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Lyophile: qui peut être desséché par lyophilisation puis recouvrer toutes ses propriétés dès la remise en solution.  2, fiche 7, Français, - syst%C3%A8me%20collo%C3%AFdal%20lyophile

Fiche 7,  Justifications,  Espagnol