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|Title:||Electron tunnelling through single azurin molecules can be on/off switched by voltage pulses||Authors:||Baldacchini, Chiara
Bizzarri, Anna Rita
|Journal:||APPLIED PHYSICS LETTERS||Issue Date:||2015||Abstract:||
Redox metalloproteins are emerging as promising candidates for future bio-optoelectronic and nano-biomemory devices, and the control of their electron transfer properties through external signals is still a crucial task. Here, we show that a reversible on/off switching of the electron current tunnelling through a single protein can be achieved in azurin protein molecules adsorbed on gold surfaces, by applying appropriate voltage pulses through a scanning tunnelling microscope tip. The observed changes in the hybrid system tunnelling properties are discussed in terms of long-sustained charging of the protein milieu.
|Appears in Collections:||A1. Articolo in rivista|
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