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(a) In vitro release kinetics of flavonoid from Cp-BSA nanospheres in PBS of pH values of 5, 7, and 9 over 72 h. (b) Cytotoxic effect of Cp-BSA nanospheres on the viability of human cancer cell lines and normal cell lines investigated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Data are means ± standard deviation (SD), n = 3.
