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Abstrato
Ganciclovir Loaded Chitosan Nanoparticles: Preparation and Characterization
Patel R, Gajra B, Parikh RH and Gayatri Patel
Chitosan Nanoparticles (CSNPs), as drug carrier, can be utilized for enhancing permeability of poorly absorbed drugs. The aim of this work was to enhance the permeability of Ganciclovir (GCV) by loading into CSNPs. An ionic gelation method was undertaken to develop GCV loaded CSNPs. Several process and formulation parameters were screened and optimized through 25-2 fractional factorial design and Box-Behnken design respectively. The CSNPs were evaluated and characterized for their particle size and shape, surface charge, entrapment efficiency, crosslinking mechanism (dried CSNPs) and drug release study. The optimized CSNPs were found with particle size of 121.20 ± 2.7 and entrapment efficiency (%EE) of 85.15 ± 1.1%. Transmission electron microscopy, scanning electron microscopy and dynamic light scattering technique revealed spherical particles with uniform size. The in vitro release profile was found to be sustained up to 24 hr. Thus, incorporation of GCV into CSNPs results in enhanced permeability, that may in turn increase overall oral absorption of the drug.