Preparation and in vitro evaluation of doxorubicin-loaded magnetic iron oxide nanoparticles / 药学学报
Acta Pharmaceutica Sinica
;
(12): 1844-1849, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-298001
ABSTRACT
PEG-modified magnetic Fe3O4 (Fe3O4-PEG) nanoparticles were sythesized using a solvothermal reaction and characterized with transmission electron microscopy (TEM) and thermo gravimetric analysis (TGA). The photothermal effect and photothermal destruction of cancer cells were evaluated. Then the doxorubicin loaded Fe3O4-PEG (DOX-Fe3O4-PEG) nanoparticles were prepared. The cytotoxicity and combined chemotherapy/photothermal therapy (PTT) effect were investigated. Uniform PEG coated Fe3O4 nanoparticles with particle size of 155 nm were obtained in the experiment. The loading and release of doxorubicin on Fe3O4-PEG were pH-dependent. The drug loading capacity in water was 21%. The results of MTT indicated a good biocompatiblity of Fe3O4-PEG nanoparticles and high cytotoxicity of DOX-Fe3O4-PEG. In combined therapy experiment, photothermal therapy demonstrated unambiguously enhanced chemotherapy efficacy. In conclusion, the obtained Fe3O4-PEG nanoparticles which exhibit good photothermal effect and drug loading capacity can be used for chemotherapy and photothermal therapy. The synergetic anti-tumor activity indicates the potential for the combined application of chemotherapy and photothermal therapy in cancer treatment.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Particle Size
/
Pharmacology
/
Polyethylene Glycols
/
Drug Carriers
/
Doxorubicin
/
Cell Survival
/
Chemistry
/
Ferrosoferric Oxide
/
Magnetite Nanoparticles
/
MCF-7 Cells
Limits:
Humans
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2013
Type:
Article
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