Formulation and evaluation of poly (L-lactide-co-ē-caprolactone) loaded gliclazide biodegradable nanoparticles as a control release carrier
Keywords:
Poly (L-lactide-co-ē-caprolactone), Gliclazide, Biodegradable Nanoparticles, Lyophilization, High Pressure HomogenizationAbstract
A biodegradable nanoparticle has been used frequently as drug delivery carrier due to its better encapsulation capacity, sustained/ control release property and less toxicity. Gliclazide (GLZ) is a second generation of hypoglycemic sulfonylurea and acts selectively on pancreatic ß cell to control diabetes mellitus. The objective of this study was to produce controlled release nanoparticles of Gliclazide using poly (L-lactide-co-ē-caprolactone) (PLCL). The method was optimized using design of experiments by employing a 3-factor, 3-level Design Expert (version 8.0.7.1) Statistical Design Software and was subjected to various characterization studies including Field Emission Scanning Electron Microscopy (FE-SEM), X-ray diffraction (XRD), Encapsulation efficiency (%EE), Particle Size Distribution (PSD), etc. Formulated nanoparticles were also subjected to Fourier Transform Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) for studying interaction between drug and polymer and the effect of lyophilization (Freeze Drying) on developed nanoparticles. The release profiles and encapsulation efficiencies are depended on the concentration of PLCL. These data demonstrated the efficacy of the biodegradable polymeric nanoparticles in controlling the gliclazide drug release profile as novel drug delivery system.
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