Field Effect Transistor For Measuring Biocomponents
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Abstract
The invention relates to a device for measuring living cells or similar biocomponents comprising a field effect transistor which is provided with a source, a drain and a channel area placed on a substrate. Said channel area connects said source and drain and is provided with a gate-electrode mounted thereon. The gate electrode has at least two laterally disposed parallel electrode areas which are perpendicular to a direction in which the channel area connects the source to the drain in such a way that they are distant and electrically insulated from each other.
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Citations
22 Claims
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1-11. -11. (canceled)
- 12. A device for conducting measurements on biological components in a nutrient solution, especially on live cells, containing at least one field effect transistor that has on a substrate a source, a drain, and a channel area connecting said source and drain on which a gate electrode that is insulated from the channel area by a thin insulation layer is arranged, whereby the gate electrode has at least two electrode regions arranged laterally next to each other, which are separated from each other perpendicular to the direction in which the channel area connects the source electrode to the drain and are electrically insulated from each other, and whereby the electrode regions have at least partial contact to the nutrient solution that lies on an electric reference potential over a reference electrode.
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22. Use of a device designed to measure a signal on a biological cell extracellularly, whereby the device has at least one field effect transistor, which has on a substrate a source, a drain, and a channel area connecting the said source and drain on which a gate electrode is arranged that is electrically insulated from the channel area by a thin insulation layer, whereby the gate electrode has at least two electrode regions arranged laterally next to each other, which are separated from each other perpendicular to the direction in which the channel area connects the source to the drain and are electrically insulated from each other.
Specification