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- Chemistry; Chem Sci/Eng
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- A sub-microscopic aggregate of molecules. In the context of cleaners, these molecules are surfactants usually arranged in sphere or rod shapes with their hydrophilic ends facing outward into the water solution and hydrophobic ends facing the inside of the aggregate. Micelles can hold hydrophobic oil molecules at their centers to create stable emulsions. Alconox, Inc.
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- Grease and oil are nonpolar and insoluble in water. When soap and soiling oils are mixed, the nonpolar hydrocarbon portion of the micelles break up the nonpolar oil molecules. A different type of micelle then forms, with nonpolar soiling molecules in the center. Thus, grease and oil and the 'dirt' attached to them are caught inside the micelle and can be rinsed away. - About.com by
- Using micelles for cleaning is not a new idea. Common household detergents contain micelles, which dramatically increase the capacity of the washwater to pick up organic contaminants. Micelles could likewise be used to remove organic contaminants from industrial waste streams. - Massachusetts Institute of Technology by
- In a micelle, the tails of the soap molecules are oriented toward and into the grease, while the heads face outward into the water, resulting in an emulsion of soapy grease particles suspended in the water.
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Compare [close] - Spanish
- Chemistry; Chem Sci/Eng
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- Se denomina micela al conglomerado de moléculas que constituye una de las fases de los coloides. Es el mecanismo por el que el jabón solubiliza las moléculas insolubles en agua, como las grasas.
Wikipedia - by Laura Mangini
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- Los lípidos polares en disolución acuosa diluida se dispersan formando micelas. En éstas las cadenas hidrocarbonadas se ocultan del entorno acuoso y forman una fase hidrófoba interna, con los grupos hidrófilos expuestos en la superficie. Estas micelas pueden contener millares de moléculas de lípidos y, por tanto, su masa es muy elevada.
Obtenido de "http://es.wikipedia.org/wiki/Micela"
- Wikipedia by Laura Mangini
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Compare [close] - French
- Chemistry; Chem Sci/Eng
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- Nom donné à la particule colloïdale unitaire en suspension dans un liquide.
Globule de très petit diamètre, 50 à 100 Å regroupant en solution quelques centaines de molécules de tensioactif. Grand Dictionnaire Terminologique - by Christian Fournier
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- Une micelle (du latin mica : « parcelle ») est un agrégat sphéroïdal de molécules possédant une tête polaire hydrophile dirigée vers le solvant et une chaîne hydrophobe dirigée vers l'intérieur. - Wikipedia by Christian Fournier
- Les propriétés individuelles des monomeres et leurs interactions définissent la structure et la forme de l'objet composé: micelle, vesicle ou bi-couche. Parmi les structures différentes, la plus simple est une micelle sphérique. - pmc.polytechnique.fr by Christian Fournier
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Compare [close] - Greek
- Chemistry; Chem Sci/Eng
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- μικήλλιο
(χημ.) συσσωμάτωμα πολύ μικρών διαστάσεων αποτελούμενο από μερικές δεκάδες έως εκατοντάδες άτομα, ιόντα, ή μόρια, χαλαρά συνδεδεμένα μεταξύ τους.
lexilogia - by Argyro Verganelaki
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- Η κρυστάλλωση των διαλυτοποιημένων μεμβρανικών πρωτεϊνών παρουσιάζει ιδιαίτερη δυσκολία, διότι η πρωτεΐνη περιβάλλεται από το μικκύλιο του απορρυπαντικού, το οποίο αποτελεί κρίσιμο παράγοντα για το σχηματισμό του κρυσταλλικού πλέγματος - Πανεπιστήμιο Κρήτης by Argyro Verganelaki
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