DESIGN, DEVELOPMENT AND CHARACTERIZATION OF PACLITAXEL LOADED SOLID LIPID NANOPARTICLES AS A COLLOIDAL DRUG CARRIER
Objective: This study was aimed to design and characterize Paclitaxel-loaded Solid Lipid Nanoparticles (SLNs) to achieve site specificity,reduce toxicity and sustained release pattern.
Methods: Paclitaxel-loaded solid lipid nanoparticles were fabricated by microemulsion followed by probe sonication technique using stearic acid as lipid and stabilized of the mixture of surfactants. In this study, 32 full factorial design was employed for optimizing the concentration of lipid as stearic acid and surfactant (soya lecithin) for the nanoparticles. The optimization was done by studying the dependent variable of particle size and % entrapment efficiency.
Results: The results showed that the paclitaxel-loaded solid lipid nanoparticles prepared with the concentration of 33.31 % stearic acid and 500 mg of soya lecithin were optimum characteristic than other formulations. They showed the average particles size 149±4.10 nm and PDI 250±2.04. The zeta potential, % EE and % drug loading capacity was found to be respectively-29.7, 93.38±1.90 and 0.81±0.01. The optimized batch of Paclitaxel SLNs exhibited spherical shape with smooth surface analyzed by Transmission Electron Microscopy. In vitro study showed sustained release profile and was found to follow Higuchi Kinetics Equation.
Conclusion: The SLNs of paclitaxel m et al. l the requirements of a colloidal drug delivery system. They had a particle size in nanosize; their size distribution was narrow and all the particles were in a spherical shape.
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