Star-Shaped Magnetic-Plasmonic Au@Fe₃O₄ Nano-Heterostructures for Photothermal Therapy.

ABSTRACT: Here, we synthesize a Au@Fe₃O₄ core@shell system with a highly uniform unprecedented star-like shell morphology with combined plasmonic and magnetic properties. An advanced electron microscopy characterization allows assessing the multifaceted nature of the Au core and its role in the growth of the peculiar epitaxial star-like shell with excellent crystallinity and homogeneity. Magnetometry and magneto-optical spectroscopy revealed a pure magnetite shell, with a superior saturation magnetization compared to similar Au@Fe₃O₄ heterostructures reported in the literature, which is ascribed to the star-like morphology, as well as to the large thickness of the shell. Of note, Au@Fe₃O₄ nanostar-loaded cancer cells displayed magneto

SUBMITTER: Muzzi B 

PROVIDER: S-EPMC9247976 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature