The work by Magro et al. demonstrates the eversible electron transfer at the interface between nanoparticles and DNA is unequivocally demonstrated by Mössbauer spectroscopy, which shows the appearance of Fe(II) atoms on nanoparticles following nanobioconjugate formation. This represents the fi rst example of permanent electron exchange by DNA, as well as, of DNA conductivity at a macroscopic scale.
Magro, M.; Baratella, D.; Jakubec, P.; Zoppellaro, G.; Tucek, J.; Aparicio, C.; Venerando, R.; Sartori, G.; Francescato, F.; Mion, F.; Gabellini, N.; Zboril, R.; Vianello, F. Triggering Mechanism for DNA Electrical Conductivity: Reversible Electron Transfer between DNA and Iron Oxide Nanoparticles. Adv. Funct. Mater. 2015, 25, 1822-1831. Link.