Preparation and Characterization of Solid Lipid Nanoparticles Loaded with Cisplatin
Cisplatin (Cis diaminedichloro platinum) was the first platinum drug to be used as an anticancer drug, and it is widely used in the treatment of testicular, head, neck, ovarian and lung cancer. The use of Cisplatin is limited due to its intrinsic and acquired resistance and severe side effects such as chronic neurotoxicity and nephrotoxicity. The colloidal carriers such as emulsion, liposomes, polymeric nanoparticles have been extensively studied to overcome above limitations. The solid lipid nanoparticles (SLNs), amongst other colloidal carriers, were found to be an ideal carrier for lipophillic drug for better stability and release retardation. Cisplatin loaded solid lipid nanoparticles was prepared by microemulsion technique. Stearic acid was used as lipid. The other excipients were used as DPPG, Soya lecithin and Poloxamer P407 and acidic buffer PH4. Also used Probe sonication for 10 min at 79 Amplitude. Cisplatin SLNs Batch C13 showed particle size of 119.23±1.52 nm, Zeta potential of -37.33±2.47 mV, % Entrapment efficiency of 90.2 ± 2.1 %., % Drug loading capacity of 1.62 ± 1.34 %., The TEM study of optimized Cisplatin SLN illustrated the spherical shape of nanoparticles. Total release amount of Cisplatin was 82.62± 2.04 % after 48 hrs. The formulation performed kinetics study followed Peppas plot equation The SLNs of Cisplatin met all the requirements of a colloidal drug delivery system. They had particle size in nanosize; their size distribution was narrow and all the particles were in spherical shape and stable.
Keywords: Cisplatin, Solid Lipid nanoparticles, zeta potential, Particle size, Transmission electron Microscopy.
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