Fig. 2From: A multi-component reaction for covalent immobilization of lipases on amine-functionalized magnetic nanoparticles: production of biodiesel from waste cooking oilFT-IR spectra of a Fe3O4@SiO2 nanoparticles; b amine-functionalized magnetic nanoparticles (MNPs-NH2); and c immobilized derivative of TLL on magnetic nanoparticles (MNPs-TLL)Back to article page