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Hydrolytic stability of CNC and CNC-APTES films; (a) time-dependent change in water uptake of 10 mm × 10 mm films placed in strainers (■ CNCs, □ CNC-APTES); (b) time-dependent change in mass loss of 10 mm × 10 mm films placed in strainers (● CNCs, ○ CNC-APTES). The error bar is based on the standard error (n = 3). Error bars are smaller than the data points for CNC-APTES.
