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Relative cell viabilities of hypoxia HepG2 (A) and HeLa (B) cells after incubated with various concentrations of free ASODN and ASODN loaded on GEL-DGL-ASODN-DCA, GEL-DGL-FA-ASODN, GEL-DGL-FA-ASODN-DCA, and DGL-FA-ASODN-DCA nanocomposites, and empty vector GEL-DGL-FA-DCA at pH 7.4 and at 24 h. The data are expressed as mean ± SD (n = 3). *P < 0.05 and **P < 0.01 versus GEL-DGL-FA-DCA group according to ANOVA.
