Anisotropy-dependent chirality transfer from cellulose nanocrystals to β-FeOOH nanowhiskers.

ABSTRACT: Chiral iron oxides and hydroxides have garnered considerable interest owing to the unique combination of chirality and magnetism. However, improving their g-factor, which is critical for optimizing the chiral magneto-optical response, remains elusive. We demonstrated that the g-factor of β-FeOOH could be boosted by enhancing the anisotropy of nanostructures during a biomimetic mineralization process. Cellulose nanocrystals were used as both mineralization templates and chiral ligands, driving oriented attachment of β-FeOOH nanoparticles and inducing the formation of highly aligned chiral nanowhiskers. Circular dichroism spectra and time-dependent density-functional theory proved that chirality transfer was induced from cellulose nanocrystals to β-FeOOH through ligand-metal ch

SUBMITTER: Tang J 

PROVIDER: S-EPMC11931430 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature