Pdf determination of critical micelle concentration of. This parameter represents a fundamental thermodynamic boundary state where several surface properties, i. Download as doc, pdf, txt or read online from scribd. Guidelines are available in other standards, and there exists a wealth of information in texts and publications. Jan, 2018 micelles are of increasing importance as versatile carriers for hydrophobic substances and nanoprobes for a wide range of pharmaceutical, diagnostic, medical, and therapeutic applications. Zeta potential and colloid chemistry eric olson abstract. Download as docx, pdf, txt or read online from scribd. In colloidal and surface chemistry, the critical micelle concentration cmc is defined as the. Due to the wide range of applications related with surfactant adsorption at different interfaces, the critical micellar concentration cmc is the simplest and one of the more important parameters for the characterization of colloid and surface properties of surfactant species, which also determines its industrial usefulness, such as foaming, wetting, emulsification and solute. Download fulltext pdf download fulltext pdf determination of critical micelle concentration of cetyltrimethylammonium bromide.
Quimica inorganica pdf descargar descargar libro gratis. This structure allows saponins, on the one hand, to interact with biological and artificial membranes 14,15,16 and on the other hand to selfassemble in solution 15,17. Rapid determination of surfactant critical micelle. The analysis of surface tension variation versus surfactant concentration is the most usual method to estimate the critical micelle concentration cmc. Micelles are of increasing importance as versatile carriers for hydrophobic substances and nanoprobes for a wide range of pharmaceutical, diagnostic, medical, and therapeutic applications.
Each mixture was characterised by an empirical parameter that provided a quantitative index of the. The effects of saponins, which are used in a variety of ways, are all based on their amphiphilic structure. In this respect, we determined the cmc of common anionic, cationic, and nonionic surfactants. Determination of the critical micelle concentration of. This work demonstrates a novel, convenient utilization of capillary electrophoresis ce instrumentation for the determination of critical micelle concentrations cmcs. Libro nuevo o segunda mano, sinopsis, resumen y opiniones. The micellar synergism was studied versus their csmponents as well as the influence of the mixture on the reduction of the water surface tension.
Zeta potential and colloid chemistry eric olson abstract the us food and drug administration often requests the measurement of zeta potential. A key parameter indicating the formation and stability of micelles is the critical micelle concentration cmc. Concentracion micelar critica by arlette huerta on prezi. Colloids and interfaces free fulltext selfassembly of. Different procedures for analysis of experimental data.
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