منابع مشابه
Growth of linear charged micelles.
The electrostatics of micellar growth is reviewed and extended for solutions containing excess salt. In dilute solution the expansion of a linear micelle with increasing salt concentration is explained for a wide range of ionic strength. When the micellar charge density is very high, counterions condense nonuniformly onto the micellar rod. In that case the micelle may contract upon the addition...
متن کاملBacteriochlorophyll aggregates in positively charged micelles.
Micellar complexes were prepared from bacteriochlorophyll a and bacteriopheophytin a with the cationic detergents, cetyltrimethyl ammonium bromide and cetylpyridinium chloride. These complexes have spectroscopic properties (absorption, circular dichroism) which are very different from the ones formed with non-ionic detergents like Triton X-100, and also with anionic detergents. Bacteriochloroph...
متن کاملElectric field manipulation of charged copolymer worm micelles.
Manipulation of diblock copolymer worm micelles by external electric fields is visualized by fluorescence microscopy in dilute, aqueous solution. Hydrodynamic coupling of the poly(acrylic acid)-(1,4)-polybutadiene (PAA-PBD) worm motion to the electric field and the effective stiffening of the worms in an oscillating electric field are demonstrated. A brief discussion on using this technique to ...
متن کاملDifferent Types of Charged-Inverse Micelles in Nonpolar Media.
Over the last few years, the electrodynamics of charged inverse micelles (CIMs) in nonpolar liquids and the generation mechanism and properties of newly generated CIMs have been studied extensively for the model system of polyisobutylene succinimide in dodecane. However, the newly generated CIMs, which accumulate at the electrodes when a continuous voltage is applied, behave differently compare...
متن کاملGrowth of Mixed Nonionic Micelles
Static and quasielastic light-scattering measurements were utilized to investigate the shape, size, and polydispersity of mixed micelles composed of the nonionic surfactants dodecyl hexaoxyethylene glycol monoether (C12E6) and dodecyl octaoxyethylene glycol monoether (C12E8) in aqueous solutions. We determined the molecular weight and diffusion coefficient of these micelles and showed that they...
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ژورنال
عنوان ژورنال: Biophysical Chemistry
سال: 1991
ISSN: 0301-4622
DOI: 10.1016/0301-4622(91)87206-k