Hierarchical Plasmonic Nanorods and Upconversion Core-Satellite Nanoassemblies for Multimodal Imaging-Guided Combination Phototherapy.

DNA-driven hierarchical core-satellite nanostructures with plasmonic gold nanorod dimers and upconversion nanoparticles are fabricated. Once the core-satellite structure is activated, combined photothermal therapy and photodynamic therapy are carried out under the guidance of upconversion luminesce, T1 -weighted magnetic resonance, photoacoustics, and computed tomography imaging of tumors in vivo, which exhibit the multifunctional biological applications of the DNA-based self-assemblies.