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Peptide release assays. Fluorescent intensity of 3D-printed loading FITC-peptide patches in different filament thickness and different methods of peptide loading. Statistical analysis is shown on the bar graphs. Data are presented as the mean ± SD of the three independent experiments. ∗P < 0.05 versus Physical Absorption (thick) group; #P < 0.05 versus Chemical Coupling (thin) group; & P < 0.05 versus Chemical Coupling (thick) group.
