Abstract
Objective To prepare and characterize epirubicin polybutylcyanoacrylate magnetic nanoparticles ( EPI-PBCA-MNPs) for the purpose of offering a new dosage form of high-performance for targeted therapy of hepatoma. Methods Nanosized Fe3 O4 magnetic fluids with the mean particle diameter of (15. 2 ±4. 6) nm were prepared by chemical coprecipitation method. Subsequently, EPI-PBCA-MNPs was prepared by a reversed-phase micro-emulsion polymerization method, of which reactive condition was pH = 2. 0 and agitating velocity = 2000 r/min, and was correlatively characterized. Results EPI-PBCA-MNPs were uniformly and stably distributed in the colloid solution with the mean particle diameter of (152.0 ±28. 5) nm. The mean envelopment rate, drug-loading, saturated magnetization intensity is (81. 30 ±15. 20) % ,(14. 65 ± 2.05) % ,0. 35 KA/m, respectively. Conclusion In this experiment, EPI-PBCA-MNPs is uniformly distributed with satisfactory particle diameter,of which main indexes meet the demand of targeted therapy for hepatoma, offering a new dosage form with applicable potential for anticancer drugs exploration. Key words: Epirubicin; Polybutylcyanoacrylate; Magnetic nanoparticles
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