Publication

Radiolabeled AOT for studies of the partitioning of the surfactant during protein extraction by means of reverse micellar two-phase systems

Albert Renken
1995
Journal Articles

Abstract

Knowledge about the distribution of surfactants between aq. and reverse micellar phases as well as the assocn. of surfactants with proteins are of major importance for assessing the practical feasibility of protein extn. by reverse micellar systems. The question of the fate of the surfactant has been addressed for the classical reverse micellar system based on brine/AOT/isooctane. For this purpose, AOT, (Aerosol OT, di-2-ethyl-1-hexyl sulfosuccinate) was synthesized in the presence of sulfite radioactively labeled with the isotope 35S. The synthesis of [35S]AOT as well as its use for tracer anal. with protein extn. are discussed. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/4472e623-0051-4214-89ee-d8668a4b716c

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Albert Renken
1995
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/4472e623-0051-4214-89ee-d8668a4b716c

About this result

Related concepts (18)

Liquid crystal

Liquid crystal (LC) is a state of matter whose properties are between those of conventional liquids and those of solid crystals. For example, a liquid crystal may flow like a liquid, but its molecules may be oriented in a crystal-like way. There are many types of LC phases, which can be distinguished by their optical properties (such as textures). The contrasting textures arise due to molecules within one area of material ("domain") being oriented in the same direction but different areas having different orientations.

Micelle

A micelle (maɪˈsɛl) or micella (maɪˈsɛlə) (plural micelles or micellae, respectively) is an aggregate (or supramolecular assembly) of surfactant amphipathic lipid molecules dispersed in a liquid, forming a colloidal suspension (also known as associated colloidal system). A typical micelle in water forms an aggregate with the hydrophilic "head" regions in contact with surrounding solvent, sequestering the hydrophobic single-tail regions in the micelle centre. This phase is caused by the packing behavior of single-tail lipids in a bilayer.

Isotope

Isotopes are distinct nuclear species (or nuclides, as technical term) of the same element. They have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), but differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei. While all isotopes of a given element have almost the same chemical properties, they have different atomic masses and physical properties.

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Radiolabeled AOT for studies of the partitioning of the surfactant during protein extraction by means of reverse micellar two-phase systems

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