SENSORS BASED ON POLYMER TRANSFORMATION

摘要

PCT No. PCT/EP94/01714 Sec. 371 Date Jan. 16, 1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed May 26, 1994 PCT Pub. No. WO94/28414 PCT Pub. Date Dec. 8, 1994A sensor format is based on impedance analysis of polymer coatings of electrodes. A detectable signal is produced by the effect of a reactive or catalytic species at or very near the polymer coated electrode. The reactive or catalytic species directly or indirectly effects a reaction with the polymer layers, whereby the polymer layer becomes porous and thus causes a measurable change in electrical properties of the electrode surface.