Figure 3

Reusable experiments of Cu-MOF hydrolyzing activity.
BSA (15 μM) incubated with Cu-MOF (0.99 mM) at pH 9.0 and 70°C for 25 min. Cu-MOF was recollected by centrifugation and shaken in water for 15 min. Then the catalyst was washed with ethanol three times. The solvent was removed under vacuum at 170°C for 2 h. The recycling was conducted ten times. Data are expressed as mean ± SD of three independent experiments.