SENSOR ELEMENTS WITH A TANTALUM- OR NIOBIUM-CONTAINING BASE LAYER AND METHODS OF PRODUCING THE SAME

摘要

Sensor elements are disclosed for the electrochemically analyzing a body fluid, as well as methods of producing and using the same. The sensor elements include an electrically conductive layer structure applied to a non-conductive carrier substrate, where the layer structure includes a continuous base layer of tantalum, niobium or an alloy thereof, and a metallic cover layer formed on the base layer that covers the base layer either over the entire surface or in some regions. The metallic cover layer includes a more noble metal when compared to the base layer.

主权项

1. A sensor element for electrochemically analyzing a body fluid sample, the sensor element comprising:
an electrically insulating carrier substrate; and an electrically conductive layer structure deposited on a surface of the carrier substrate, wherein the electrically conductive layer structure comprises a continuous base layer of tantalum, niobium or an alloy thereof and a metallic cover layer formed on the base layer covering the base layer over an entire surface of the base layer or in some regions thereof, wherein the cover layer is a more noble metal when compared to the base layer, and wherein the electrically conductive layer structure includes an electrode arrangement to the which the body fluid sample can be applied.