Estudio morfológico de talcos con microscopio electrónico de barrido (sem). Aplicaciones farmacéuticas
Keywords:
Talco, Morfología, SEM, Uso tópicoAbstract
Se estudian con microscopía electrónica de barrido la morfología y la ultramicrofábrica de talcos pulverizados y depreparados comerciales de “polvos de talco”, con el objeto de caracterizarlos para su aplicación Farmacéutica yCosmética. Se encuentran partículas pequeñas, partículas grandes, agregados y agregados en “bolsa”, con fábricaslaminares concéntricas y planares, laminares en dominios y fábricas de agregados. Estas morfologías se adquierencon el proceso de molienda, como consecuencia de la estructura cristalina y de las propiedades físicas (como durezay exfoliación) del talco. Se consideran idóneas para el uso tópico porque favorecen la aplicación sobre la piel ypermiten la adsorción de exudados debido a la porosidad y frecuencia de intersticios.Downloads
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