[Study on preparation and characterization of resveratrol solid lipid nanoparticles and its anticancer effects in vitro]

To prepare resveratrol solid lipid nanoparticles (Res-SLN) and investigate its physical and chemical speciality and anticancer effects in vitro.Res-SLN was prepared by the solvent emulsification-evaporation method. Its morphology, particle size and zata potential were examined by transmission electron microscope and laser granularity equipment. Its entrapment efficiency, drug loading, release concentration were determined by HPLC. Its anticancer effect of Res-SLN in vitro were studied by MTT.Res-SLN assumed spherical shape. Its distribution of diameter was even with average particle size of 96. 7 nm, zata potential was--16.3mV, drug loading was (7.95 +/- 0.21)%, entrapment efficiency was (91.34 +/- 0.18)%; Res-SLN could retard drug release in vitro and its cytotoxicity was significantly higher than that of oridonin solution against HepG2 cells.Res-SLN has high entrapment efficiency and drug loading, uniform particle size, and can retard drug release in vitro and enhance anticancer effect.