Polymeric surfactant vesicles. Synthesis and characterization by nuclear magnetic resonance spectroscopy and dynamic laser light scattering

Morphology and viscoelasticity of bilayer aqueous colloids of low-molecular and macromolecular amphiphiles

“…Allylbis [2-(dodecanoyloxycarbonyt)ethyl]methylammonium bromide (ADM) was synthesized according to the procedure shown [10,14]. Preparation and purification of ADM were confirmed with 1HNMR, IR and elemental analysis.…”

Polymerized surfactant aggregates: characterization and utilization

“…Hydrodynamic radii of well-sonicated charged surfactant vesicles are in the 200-800-Á range. 43 Typically, size distribution of a given surfactant vesicle deviates ±10% from the mean.…”

“…For example, polymerization of vesicles prepared from 10 by 20-s sonication only alters the hydrodynamic radius, f?H> from 2500 to 2750 Á.45 Similarly, polymerization of vesicles with = 277 Á, prepared by a minute sonication of 9, leads to vesicles with RH = 286 Á. 43 Electron microscopy and glucose entrapments provide evidence for maintaining the vesicle structure intact during polymerization. Due attention should be given, however, to interpreting electron micrograms.…”

Vesicle sizing

“…Dynamic light scattering (DLS) has been regularly used to obtain size information from aqueous suspensions of vesicles or liposomes (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). The majority of these investigations used the method of cumulants, sometimes termed moments analysis, to analyze the experimental light scattering data.…”