Charge transport in disordered films of non-redox proteins.
Electrical conduction in solid state disordered multilayers of non-redox proteins is demonstrated by two-terminal transport experiments at the nanoscale and by scanning tunneling microscopy (STM/STS experiments). We also show that the conduction of the biomolecular films can be modulated by means of a gate field. These results may lead to the implementation of protein-based three-terminal nanodevices and open important new perspectives for a wide range of bioelectronic/biosensing applications.
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National Nanotechnology Laboratories of CNR-INFM, Technological District-ISUFI, University of Lecce, Via per Arnesano, 73100 Lecce, Italy.
Della Torre
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del Mercato
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LL
Chiuri
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Bramanti
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Calabi
F
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Maruccio
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Cingolani
R
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Rinaldi
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D000818:Animals; D015374:Biosensing Techniques; D002417:Cattle; D002627:Chemistry, Physical / Q000379:methods*; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D004583:Electrons; D016252:Microscopy, Scanning Tunneling; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods; D010084:Oxidation-Reduction; D010455:Peptides / Q000737:chemistry; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry*; D012710:Serum Albumin, Bovine / Q000737:chemistry; D013696:Temperature
D010455:Peptides; D011506:Proteins; D012710:Serum Albumin, Bovine