Biofunctionalization of Magneto-Plasmonic FeO@SiO-NH-Au Heterostructures with the Cellulase from .

The study focuses on the synthesis of FeO@SiO-NH-Au heterostructures with magneto-plasmonic properties composed of well-defined cubic FeO cores (79 nm) covered with 10 nm silica shell and gold nanoparticles (8 nm) fabricated on silica shell. The surface-anchored MHDA (16-mercaptohexadecanoic acid) linker facilitated cellulase bioconjugation, which was confirmed through Raman spectroscopy. The presence of gold nanoparticle islands on the heterostructure enabled surface-enhanced Raman scattering (SERS), demonstrating the potential for bioactive substance identification.