title: Preparation, characterization, cytotoxicity and drug release behavior of liposome-enveloped paclitaxel/Fe3O4 nanoparticles.
abstract: Phospholipid vesicles encapsulating magnetic nanoparticles (liposome complexes) have been prepared for targeting a drug to a specific organ using a magnetic force, as well as for local hyperthermia therapy. Liposome complexes are also an ideal platform for use as contrast agents of magnetic resonance imaging (MRI). We describe the preparation and characterization of liposomes containing magnetite. These liposomes were obtained by thin film hydration method and Fe3O4 nanoparticles were synthesized by coprecipitation method. They were characterized by an electrophoretic light scattering spectrophotometer, the liposome complexes were subsequently coated using chitosan. We have further investigated the ability of the above formulation for drug delivery and MRI applications. We are specifically interested in evaluating our liposome complexes for drug therapy; hence, we selected paclitaxel for the combination study. The amount of paclitaxel was measured at 227 nm using a UV-Vis spectrophotometer. Cytotoxicity of liposome complexes was treated with the various concentrations of paclitaxel in PC3 cell lines. The structure and properties of liposome complexes were analyzed by FT-IR, XRD and VSM. The particle size was analyzed by TEM and DLS.
authors: Department of Chemical Engineering, Hanyang University, 1271 Sa-1, Ansan, Gyeonggi-do 426-791, Korea.
authors: Min-Jung
authors: MJ
authors: Kim
authors: Dae-Hwan
authors: DH
authors: Jang
authors: Young-In
authors: YI
authors: Lee
authors: Hyun Sook
authors: HS
authors: Jung
authors: Hak-Jong
authors: HJ
authors: Lee
authors: Yong-Ho
authors: YH
authors: Choa
mesh_terms: D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D048271:Chitosan / Q000737:chemistry; D016503:Drug Delivery Systems / Q000379:methods*; D005290:Ferric Compounds / Q000737:chemistry; D006801:Humans; D008081:Liposomes / Q000008:administration & dosage / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D053768:Metal Nanoparticles / Q000008:administration & dosage / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D058726:Nanoconjugates / Q000008:administration & dosage / Q000737:chemistry*; D017239:Paclitaxel / Q000008:administration & dosage / Q000737:chemistry* / Q000493:pharmacokinetics / Q000494:pharmacology; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D005290:Ferric Compounds; D008081:Liposomes; D058726:Nanoconjugates; C000499:ferric oxide; D048271:Chitosan; D017239:Paclitaxel