Patent ID: 7939024

Claim:
A sensor device for determining at least one of a presence and an amount of at least one component in a fluid, the sensor device comprising: at least one sensor unit on a substrate configured to be arranged in a fluid, wherein the sensor unit comprises at least one elongated nanostructure situated in a direction substantially perpendicular to the substrate and a dielectric material essentially surrounding the elongated nanostructure, wherein the elongated nanostructure has a bottom and a top and at least a first contact and a second contact, wherein the first contact is a drain contact and is connected to the bottom of the elongated nanostructure, and wherein the second contact is a source contact and is connected to the top of the elongated nanostructure, wherein the elongated nanostructure has a gate structure underneath the drain contact, wherein the dielectric material is selectively permeable for at least one component in the fluid, and wherein, in use, the elongated nanostructure is configured for sensing the component permeated through the dielectric material.