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Characterization of the random PLCL nanofibers after step-wise modifications of PDA-Cu2+ complexes, PLys molecules, and CAG peptides: (A) AFM images; (B) Surface wettability (n = 3); (C–E) Wet tensile property, including stress-strain curves, tensile strength, and Young's modulus (n = 6); (F) Zeta potential; (G–H) Relative BSA adsorption (n = 6) and FITC-BSA adsorption. ∗∗p < 0.01.
