Transistor-like behavior of single metalloprotein junctions.
basic_science · Level V
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- Record sourced from PubMed, PMID 21973084.
- Also identified by DOI 10.1021/nl2028969.
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Abstract
Single protein junctions consisting of azurin bridged between a gold substrate and the probe of an electrochemical tunneling microscope (ECSTM) have been obtained by two independent methods that allowed statistical analysis over a large number of measured junctions. Conductance measurements yield (7.3 ± 1.5) × 10(-6)G(0) in agreement with reported estimates using other techniques. Redox gating of the protein with an on/off ratio of 20 was demonstrated and constitutes a proof-of-principle of a single redox protein field-effect transistor.
Medical subject headings
- Azurin
- Electrodes
- Gold
- Transistors, Electronic