We show that the electron-transfer protein azurin can be used to fabricate biomolecular rectifiers exploiting its native redox properties, chemisorption capability and electrostatic features. The devices consist of a protein layer interconnecting nanoscale electrodes fabricated by electron beam lithography. They exhibit a rectification ratio as large as 500 at 10 V, and operate at room temperature and in air.
Electronic rectification in protein devices / Rinaldi, R; Biasco, A; Maruccio, G; Arima, V; Visconti, P; Cingolani, R; Facci, P; DE RIENZO, Francesca; DI FELICE, Rosa; Molinari, Elisa; Verbeet, Mp; Canters, Gw. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 82:3(2003), pp. 472-474. [10.1063/1.1530748]