Abstract: This invention relates to a semiconductor substrate having a porous surface nd to the amperometric receptor-based sensors formed with the substrate. More specifically, this invention pertains to the substrate in the form of a bipolar junction transistor having a porous hydrophilic surface directly on its base wherein the surface forms a support for an amperometric sensor. The invention also pertains to the methods of making and using the substrate and sensor.
Type:
Grant
Filed:
January 14, 1992
Date of Patent:
July 6, 1993
Assignee:
The United States of America as represented by the Secretary of the Navy