Micelles are of increasing importance as versatile carriers for hydrophobic substances and nanoprobes for a wide range of pharmaceutical, diagnostic, medical, and therapeutic applications. Chapter 2 critical micelle concentration of surfactant. Zeta potential and colloid chemistry eric olson abstract the us food and drug administration often requests the measurement of zeta potential. The effects of saponins, which are used in a variety of ways, are all based on their amphiphilic structure. Each mixture was characterised by an empirical parameter that provided a quantitative index of the. Colloids and interfaces free fulltext selfassembly of. Download as doc, pdf, txt or read online from scribd. Solution viscosity differences across a range of surfactant concentrations were monitored. Shah 1983 the critical micelle concentration indicates the usually narrow range of concentrations separating the limits,at below which most of the surfactant is in the monomeric state and above which virtually all additional surfactants enters the micellar state.
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. Concentracion critica micelar tensioactivo tension. Different procedures for analysis of experimental data. En este trabajo unicamente nos vamos a referir a las micelas. In colloidal and surface chemistry, the critical micelle concentration cmc is defined as the. The analysis of surface tension variation versus surfactant concentration is the most usual method to estimate the critical micelle concentration cmc. This parameter represents a fundamental thermodynamic boundary state where several surface properties, i. Nov 20, 2009 this work demonstrates a novel, convenient utilization of capillary electrophoresis ce instrumentation for the determination of critical micelle concentrations cmcs. Concentracion micelar critica by arlette huerta on prezi. Libro nuevo o segunda mano, sinopsis, resumen y opiniones. In this respect, we determined the cmc of common anionic, cationic, and nonionic surfactants. 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.
Quimica inorganica pdf descargar descargar libro gratis. Guidelines are available in other standards, and there exists a wealth of information in texts and publications. Download fulltext pdf download fulltext pdf determination of critical micelle concentration of cetyltrimethylammonium bromide. 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. Zeta potential and colloid chemistry eric olson abstract. 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. Critical micelle concentration of polyoxy1,2ethanediyl. Rapid determination of surfactant critical micelle. Download as docx, pdf, txt or read online from scribd.