A protein field-effect transistor (Pro-FET) based on the blue-copper protein azurins (see Figure) and operating at room temperature and ambient pressure is demonstrated. The transfer characteristics of the Pro-FET exhibit a pronounced resonance due to the switch from behaving as a n-metal oxide semiconductor FET (n-MOSFET) to a p-MOSFET. Carrier transport through the device is explained in terms of an equilibrium between the two possible oxidation states of the redox site (Cu1+ and Cu2+).
Towards protein field-effect transistors: report and model of a prototype / G., Maruccio; A., Biasco; P., Visconti; A., Bramanti; P. P., Pompa; F., Calabi; R., Cingolani; R., Rinaldi; S., Corni; DI FELICE, Rosa; Molinari, Elisa. - In: ADVANCED MATERIALS. - ISSN 0935-9648. - STAMPA. - 17:(2005), pp. 816-822. [10.1002/adma.200400628]
Towards protein field-effect transistors: report and model of a prototype
DI FELICE, ROSA;MOLINARI, Elisa
2005
Abstract
A protein field-effect transistor (Pro-FET) based on the blue-copper protein azurins (see Figure) and operating at room temperature and ambient pressure is demonstrated. The transfer characteristics of the Pro-FET exhibit a pronounced resonance due to the switch from behaving as a n-metal oxide semiconductor FET (n-MOSFET) to a p-MOSFET. Carrier transport through the device is explained in terms of an equilibrium between the two possible oxidation states of the redox site (Cu1+ and Cu2+).
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