Fig. 3: Characterization of the successful integration of Pd@C-Cage+ and CALB− through electrostatic complexation. | Nature Communications

Fig. 3: Characterization of the successful integration of Pd@C-Cage+ and CALB− through electrostatic complexation.

From: Ionic organic cage as a versatile platform for immobilizing chemical and enzymatic sites for chemoenzymatic catalysis

Fig. 3

a Zeta potential histograms of C-Cage+ (red) and CALB− (blue). The error bar states the standard error based on three experimental trials. b HAADF-STEM images of Pd@C-Cage-CALB and the size distribution histograms (each experiment was repeated independently three times, yielding similar results. Data were calculated from 30 counts). c FT-IR spectra of CALB (blue), Pd@C-Cage+ (green), and Pd@C-Cage-CALB (red). d XPS spectrum of Pd@C-Cage-CALB confirming the presence of Pd from Pd@C-Cage+ and the O from CALB−. e SEM images and corresponding elemental mapping of Pd@C-Cage-CALB obtained by freeze-drying. f Molecular dynamics (MD) simulation illustrating the intimate interaction between Pd@C-Cage+ and CALB− after 8 ns (each experiment was repeated independently three times, yielding similar results).

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