Research Article

Preparation and Characterization of Folate-Targeted Fe3O4 Nanoparticle Codelivering Cisplatin and TFPI-2 Plasmid DNA for Nasopharyngeal Carcinoma Therapy

Figure 3

(a) Agarose gel electrophoresis restriction assay of FA-PEG-PEI@SPION-CDDP-TFPI-2 at various mass ratio B (1 : 4), C (1 : 2), D (1 : 1), E (2 : 1), F (4 : 1)}. (b) Dnase-I degradation assay of FA-PEG-PEI@SPION-CDDP-TFPI-2 (overdose TFPI-2) with DNase-I at various contents (H, I, J, K = 10, 15, 20, 25 units). (A) Marker; (G) naked TFPI-2 pDNA.
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