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Column charts presenting the viability of VK2/E6E7 cells with controls (as described in Table 2) and different concentrations (expressed in mg/mL) of drug-free (P3, P5, P6) or CLO-loaded (F3, F5, F6) microparticles with unmodified (P3, F3) or chitosan cross-linked with βGP at different ratios (P5–P6, F5–F6) incubated for: (A) 4 h; (B) 24 h; and (C) 48 h measured by using MTT assay (n = 6).
