Carbon nanotube transistor controlled by a biological ion pump gate.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20426455.
- Also identified by DOI 10.1021/nl100499x.
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Abstract
We report a hybrid bionanoelectronic transistor that has a local ATP-powered protein gate. ATP-dependent activity of a membrane ion pump, Na(+)/K(+)-ATPase, embedded in a lipid membrane covering the carbon nanotube, modulates the transistor output current by up to 40%. The ion pump gates the device by shifting the pH of the water layer between the lipid bilayer and nanotube surface. This transistor is a versatile bionanoelectronic platform that can incorporate other membrane proteins.
Medical subject headings
- Adenosine Triphosphate
- Biomimetic Materials
- Lipid Bilayers
- Nanotechnology
- Nanotubes, Carbon
- Sodium-Potassium-Exchanging ATPase
- Transistors, Electronic