Efficient immobilization of cellulase on polydopamine-modified nickel foam for enhanced lignocellulose conversion.

In situ saccharification of lignocellulose is essential for efficiently converting biomass into value-added products. In this study, nickel foam underwent electrochemical pore size regulation and polydopamine modification to produce polydopamine-modified foam nickel with aperture control (PNiF-AC), which was used for cellulase immobilization and in situ saccharification of wheat straw. PNiF-AC demonstrated excellent hydrophilicity, biocompatibility, and robust adsorption-desorption cycling properties.