alexa Formulation and characterization of triclosan sub-micron emulsions and nanocapsules.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Maestrelli F, Mura P, Alonso MJ

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Abstract Triclosan, a non-ionic, broad spectrum anti-microbic agent, has recently demonstrated its effectiveness as an anti-malarial drug by inhibition of the growth of Plasmodium Falciparum. The aim of this work was to formulate suitable triclosan colloidal carriers with the final objective of obtaining a drug delivery system suitable for a potential anti-malarial oral treatment. Two different nanotechnological approaches were experimented with that could be suitable for developing effective triclosan formulations against this established and re-emerging infectious disease. Sub-micron emulsions were prepared by the solvent displacement method, using different oily amounts in order to vary the drug amount entrapped in the formulation. Chitosan-coated nanocapsules were obtained with chitosan hydrochloride at two different viscosity degrees (Cl 113 and Cl 213). All formulations were appropriately characterized by determining drug loading capacity and encapsulation efficiency and measuring particle size and zeta potential. Morphological characterization of the different systems was performed by TEM analysis, whereas release studies were carried out by reverse bag dialysis method. All preparations resulted stable. Cl 113-coated nanocapsules appeared particularly suitable as triclosan carriers for obtaining a systemic drug release, owing to both chitosan's good mucoadhesive and enhancer properties as well as the effectiveness shown by its coating in adequately controlling drug release rate. This article was published in J Microencapsul and referenced in Journal of Nanomedicine & Nanotechnology

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