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gary286(½ð±Ò+5): ¶àлӦÖú£¬·½·¨ºÍ½á¹ûÈçÏ 2011-06-13 09:09:10
lixiangde(½ð±Ò+1): ¸Ðл»ØÌû½»Á÷ 2011-06-14 15:28:03
gary286(½ð±Ò+5): ¶àлӦÖú£¬·½·¨ºÍ½á¹ûÈçÏ 2011-06-13 09:09:10
lixiangde(½ð±Ò+1): ¸Ðл»ØÌû½»Á÷ 2011-06-14 15:28:03
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gary286
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4Â¥2011-06-13 09:00:40
gary286
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taozhikai(½ð±Ò+3): лл 2011-06-13 09:30:25
taozhikai(½ð±Ò+3): лл 2011-06-13 09:30:25
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¶àл£¬ÐðÊöÈçÏ£º The cytotoxicity study was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in MCF-7 cells. MCF-7 cells were maintained in DMEM media supplemented with 10% fetal bovine serum (FBS) (Gibco, Grand Island, NY., USA), 2 mM L-glutamine, 100 mg/ml streptomycin, and 100 U/ml penicillin. The cell lines were cultured in 35 mm cover glass-bottom dish (SPL Life Sciences, Seoul, South Korea) at 37 oC in a humidified atmosphere containing 5% CO2. The magnetite particles at concentrations of 0, 0.03, 0.3 mg/mL in DMEM medium were mixed with the cells, and the cells were incubated for 4 h, 8 h, 24 h, 48 h, and 96 h. Optical density of each sample was measured in a Dynatech MR7000 ELISA reader at 570 nm. The optical density of the media was proportional to the number of viable cells. Inhibition of proliferation was evaluated as a percentage of control growth. The results were expressed as an average over three nominally identical measurements. 0.03 4~96h 97.33263£» 96.01693£»96.71721£»97.61354£»95.56296 0.3 4~96h 89.94877£» 93.27308£»94.00933£»94.81344£»91.00256 |
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