Strong electron-conjugation interaction facilitates electron transfer of hemoglobin by Ce(OH)3 nanorods

Abstract

Here, we investigated the interactions between nanorods (NRs) of Ce(OH)3 and CeO2 and the redox protein hemoglobin (Hb) by electrochemical methods combined with Electron Paramagnetic Resonance (EPR) spectroscopy. It was found that Ce(OH)3 NRs, with strong electron-donating ability, were able to conjugate with the aromatic residues in Hb, and were more efficient in the preferred stabilization of Feα.