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Pictographs of the prepared films: (a) CP0, (a1) CP0D; (b) CP1, (b1) CP1D; (c) CP2, (c1) CP2D; (d) CP3, (d1) CP3D; (e) CP4, (e1) CP4D; and (f) Thickness of the pristine films (mean ± standard deviation). The symbol * denotes the significant differences at p < 0.05 level.
