Fig. 1
From: Functional molecule-mediated assembled copper nanozymes for diabetic wound healing
Characterization of Cu-DCA NZs. (A) Schematic of the preparation of Cu-DCA NZs. (B) AFM images of Cu-DCA NZs. (C) TEM images and (D) corresponding element mapping of Cu-DCA NZs. (E) The hydrated particle size of Cu-DCA NZs. Inset is the UV–vis absorption spectra and solution photograph of Cu-DCA NZs. (F) Zeta potential of Cu(NO3)2·3H2O, DCA and Cu-DCA NZs. (G) FTIR spectrum of DCA and Cu-DCA NZs. (H-J) XPS analysis of Cu-DCA NZs. (H) XPS spectra, (I) Cu 2p and (J) Cu LMM. Data are presented as the mean ± SD (n = 3)