Nanostructured and Spiky Gold Shell Growth on Magnetic Particles for SERS Applications.

ABSTRACT: Multifunctional micro- and nanoparticles have potential uses in advanced detection methods, such as the combined separation and detection of biomolecules. Combining multiple tasks is possible but requires the specific tailoring of these particles during synthesis or further functionalization. Here, we synthesized nanostructured gold shells on magnetic particle cores and demonstrated the use of them in surface-enhanced Raman scattering (SERS). To grow the gold shells, gold seeds were bound to silica-coated iron oxide aggregate particles. We explored different functional groups on the surface to achieve different interactions with gold seeds. Then, we used an aqueous cetyltrimethylammonium bromide (CTAB)-based strategy to grow the seeds into spikes. We investigated the influence of the surfa

SUBMITTER: Bedford EE 

PROVIDER: S-EPMC7693944 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature