Nanogen Issued Patent for Permeation Layer of Microchip

The '053 patent provides for a protective porous membrane layer, or permeation layer, to be deposited over microchip electrodes. The permeation layer can be made of materials from natural or synthetic polymers. Nanogen's '053 patent relates to the chemistries used to create the permeation layer, which allows electrochemical products generated at the electrode surface to travel through the layer and into the solution immediately above the electrodes.

Previously, common methods used to layer membranes on the microchip substrate were prone to separate or delaminate from the electrode surface. Nanogen's invention solves this problem by combining covalent chemistries that make it possible to apply an electronic bias to the electrodes of a microchip while preventing the separation of the permeation layer from the electrode surface.

This new patent expands Nanogen's intellectual property portfolio to include 112 patents issued in the U.S.