DNA‐Iron Oxide Templated Multifunctional Nanocarbon Networks

The assembly of hybrid nanocomposites often leads to the emergence of new properties. For example, DNA‐scaffolded colloidal gold can exhibit chiroplasmonic signals, while nanocomposite‐integrated carbon nanotubes display gating properties. Here, we investigate the application of core–shell iron oxide‐DNA nanoparticles as a universal nanotechnological “glue” for the fabrication of extended carbon‐nanomaterial superstructures. The magnetic nanohybrid, i.e., the nanoglue, is produced by a simple self‐assembly process and its properties are tested using three different carbon‐based nanomaterials (CBNs): single‐wall carbon nanotubes, graphene flakes, and fullerene. In all cases, the generated micrometric architectures integrate the magnetic, optical, and colloidal properties of the nanoglue, further turning water‐insoluble CBNs into fully water‐dispersible nanocomposites (ca. 1 g L −1 ), and displaying photoresponsive properties, once organized in a device configuration. Atomic force microscopy and scanning electron microscopy characterizations show distinctive geometries associated with the specific CBN employed. In addition, while Raman spectroscopy investigations demonstrate the hybrid possess increased p‐type doping, fluorescence microscopy confirms green light emission. We envision the nanoglue presented in this study to be of general applicability for the construction of a variety of functional CBN architectures toward their potential integration into sensors, nanogates, and nanophotonic devices.