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In vitro cumulative release profiles of chlorhexidine from hydrogel films of variable MCC : CMC content ratios in PBS (pH 7.4) at 37°C. F1 represents films composed of 4.0 : 4.0, F2 composed of 4.5.0 : 3.5, F3 composed of 5.0 : 3.0, and F4 composed of 5.5 : 2.5 CMC : MCC. Values are expressed as mean ± SD of three replicates.
