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Cell viability on day 1 (A) and day 3 (B) of MG-63 cells under exposure to differing dosages of CNTs, CNT-PLGA, CNT-PLGA-BSA, caspase-3, Pro-Ject and CNT-PLGA-CP3 treatment. * means significant difference of cell viability under CNT-PLGA-CP3 cojugate exposure and other groups of same dosage.
