Figure 2.
a) Fluorescence emission spectra of hemin, G4‐hydrogels, and hemin in G4‐hydrogels. b) X‐ray powder diffraction of lyophilized G4‐hydrogels, with characteristic Bragg angles indicated by arrows. c) X‐ray powder diffraction of lyophilized G4‐hydrogels after glucose‐oxidase/hemin loading, with characteristic Bragg angles indicated by arrows. d) Scanning electron micrographs of lyophilized G4‐hydrogels. e) Scanning electron micrographs of lyophilized G4‐hydrogels after glucose‐oxidase/hemin loading.