Synthesis of Ag–Fe3O4 heterodimeric nanoparticles

We report a general synthetic method for construction of size-controlled Ag–Fe3O4 heterodimeric nanoparticles using the Fe3O4 nanoparticles as the seeds. The Ag–Fe3O4 heterodimeric nanoparticle can be controlled by tuning the size of the Fe3O4 seed and reaction conditions for synthesis of the Ag nanoparticles grown on it. The as-synthesized nanoparticles can be readily converted into aqueous-soluble form with newly introduced functional groups on the surface of Ag–Fe3O4 heterodimeric nanoparticles.

Graphical abstractThe Ag–Fe3O4 (9–12 nm) heterodimeric nanoparticle can be constructed by synthesis of Ag nanoparticle grown on the Fe3O4 seed.Figure optionsDownload full-size imageDownload as PowerPoint slide