Gold-iron oxide nanohybrids: insights into colloidal stability and surface-enhanced Raman detection.

ABSTRACT: Nanoparticles are acquiring an ever increasing role in analytical technologies for enhanced applications such as signalling of hazardous dyes. One challenge for the synthesis of hybrid nanomaterials is to control their shape, size and properties. The colloidal and interfacial properties of initial nanoparticles are decisive for the formation, growth and characteristics of nanohybrids. Our objective is to combine the advantages of iron oxide nanoparticles for magnetic separation with nanoscale gold for a surface enhanced Raman scattering (SERS) effect which could be used e.g. for improved detection of dye molecules. We synthesized iron oxide nanoparticles (∼10 nm) with a high saturation magnetization of around 80 Am² kg^-1 and coupled nanoscale gold to these part

SUBMITTER: Schwaminger SP 

PROVIDER: S-EPMC9416941 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature