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Fig. 8
Evaluation of RITC-conjugated N4-MSN50@PEG/THPMP for cell uptake. U87-MG cells treated with different concentrations of N4-RMSN50@PEG/THPMP (250, 500, and 750 μg/ml) for 24 h. (A) Flow cytometry analysis and (B) fluorescence microscopy imaging for cell uptake in 10% serum-containing medium. Scale bars: 200 μm.
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