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Activities against migration and invasion for the nanoparticles. Migration (A) and invasion (C) activities of A549 cells treated with free CDDP, free CUR, combo free, free Pt–CUR as well as Pt–CUR@PPPN, Pt–CUR@PSPN and Pt–CUR@PSPPN. The quantification of migration (B) and invasion (D) activities. Data are expressed as mean ± SD (n = 3). *P < 0.05, **P < 0.01.
