Towards DNA‐Mediated Self Assembly of Carbon Nanotube Molecular Devices

We report covalent coupling of peptide nucleic acid (PNA) to ropes of carboxylated, single‐walled, carbon nanotubes. Subsequent hybridization of these functionalized nanotubes with DNA was investigated by atomic force microscopy (AFM). Nanotubes with duplex DNA attached to their ends were observed. We expect that the synthesis of these oligonucleotide‐derivatized nanotubes is an important first step important toward uniting the recognition capabilities of DNA with the unique electronic properties of carbon nanotubes.