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Determination of CNTs delivered into osteosarcoma cells. Dosage is 3 μg/ml. (A) Osteosarcoma cells cultured with CNT-PLGA-fBSA (B) Image of fluorescent signal within osteosarcoma cells (C) Optic and fluorescent combined image of CNT-PLGA-fBSA image (D) TEM image of a single CNT-PLGA-BSA penetrating the cell body.
