US 7,598,546 B1 · Separative extended gate field effect transistor based vitamin C sensor and forming method thereof

Abstract

A separative extended gate field effect transistor based vitamin C sensor includes: a substrate; a patterned conductive layer on the substrate, including a first electrode region array, at least two first contact regions, a second electrode region and a second contact region; a graphite-based paste layer on the first electrode region array; a ruthenium dioxide sensing layer on the graphite-based paste layer and electrically connected to the first contact region; a vitamin C enzyme layer on the ruthenium dioxide sensing layer; and a reference electrode on the second electrode region electrically connected to the second contact region.

Claims27

Dependent claims

A separative extended gate field effect transistor based vitamin C sensor, comprising:

a substrate;
a patterned conductive layer on the substrate, comprising:
a first electrode region array;
at least two first contact regions;
a second electrode region;
and
a second contact region;
a graphite-based paste layer on the first electrode region array;
a ruthenium dioxide sensing layer on the graphite-based paste layer and electrically connected to the first contact regions;
a vitamin C enzyme layer on the ruthenium dioxide sensing layer;
and
a reference electrode on the second electrode region electrically connected to the second contact region.

9 more elements

Dependencies are inferred from the claim text.

Separative extended gate field effect transistor based vitamin C sensor and forming method thereof

Life of this patent

Separative extended gate field effect transistor based vitamin C sensor and forming method thereof

Life of this patent

Abstract

Claims27