Development and Optimization of Osmotically Controlled Asymmetric Membrane Capsules for Delivery of Solid Dispersion of Lycopene

Autor: Rashmi Sareen, Kanaya Lal Dhar, Nitin Jain, Neeraj Mahindroo
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: The Scientific World Journal
The Scientific World Journal, Vol 2014 (2014)
ISSN: 2356-6140
DOI: 10.1155/2014/438528
Popis: The aim of the present investigation is to develop and statistically optimize the osmotically controlled asymmetric membrane capsules of solid dispersion of lycopene. Solid dispersions of lycopene withβ-cyclodextrin in different ratios were prepared using solvent evaporation method. Solubility studies showed that the solid dispersion with 1 : 5 (lycopene : β-cyclodextrin) exhibited optimum solubility (56.25 mg/mL) for osmotic controlled delivery. Asymmetric membrane capsules (AMCs) were prepared on glass mold pins via dip coating method. Membrane characterization by scanning electron microscopy showed inner porous region and outer dense region. Central composite design response surface methodology was applied for the optimization of AMCs. The independent variables were ethyl cellulose (X1), glycerol (X2), and NaCl (X3) which were varied at different levels to analyze the effect on dependent variables (percentage of cumulative drug release (Y1) and correlation coefficient of drug release (Y2)). The effect of independent variables on the response was significantly influential. The F18was selected as optimized formulation based on percentage of CDR (cumulative drug release) of 85.63% and correlation coefficient of 0.9994. The optimized formulation was subjected to analyze the effect of osmotic pressure and agitational intensity on percentage of CDR. The drug release was independent of agitational intensity but was dependent on osmotic pressure of dissolution medium.
Databáze: OpenAIRE
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