Synthesis, transfer, and characterization of core-shell gold-coated magnetic nanoparticles.

ABSTRACT: Magnetic separation has gained new popularity as a versatile partitioning method with the recent growth in nanotechnology and related biotechnology applications. In this study, iron oxide magnetic nanoparticles were synthesized via solvothermal methods and directly coated with gold to form core-shell gold-coated magnetic nanoparticles (Fe₃O₄-AuNPs). High-resolution transmission electron microscopy with Energy dispersive X-ray spectroscopy results suggests that temperature and reaction time play an important role in the formation of small, monodisperse Fe₃O₄-AuNPs. We also demonstrate that increased 4- dimethyl(amino)pyridine (DMAP) concentrations and vigorous stirring were required to successfully transfer Fe₃O₄-AuNPs into a

SUBMITTER: Smith M 

PROVIDER: S-EPMC6396083 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature