Magnetic‐Plasmonic Dual Modulated FePt‐Au Ternary Heterostructured Nanorods as a Promising Nano‐Bioprobe

Ternary FePt-Au nanorods are synthesized as magnetic-plasmonic 1D nanostructures. Besides their widely tunable magnetic properties, their unique plasmonic response to the illumination polarization provides a powerful tool to optically image these sub-wavelength single nanorods. These nanoparticles also show the potential as a novel nano-bioprobe based on the demonstration of simultaneous magnetic manipulation and optical imaging of single particles inside live cells.