Fe3O4@PDA Immobilized glycerine dehydrogenase

Synthesis of surface modified/magnetic nanoparticles has become a vital research area of material science. In the present work, iron oxide (Fe3O4) nanoparticles prepared by solvo-thermal method were functionalized by polydopamine, which was as a facile nanoplatform for immobilizing glycerine dehydrogenase (GDH). The obtained nanocatalyst enabled efficient glycerol dehydrogenation reaction. The results show that GDH immobilized on polydopamine coated iron oxide (Fe3O4@PDA@GDH) revealed better adoptability towards higher levels of pH comparative. Moreover, this biocatalyst can be easily recovered from the reaction system without centrifugation or filtration.