The improved control of the O2
-FET has been implemented into an ongoing development at the Heinz Nixdorf Department for Medical Electronics. It is now possible to detect oxygen - additional to the detection via ISFET - by measuring the current at the noble metal electrode. Furthermore an user-defined voltage signal (rectangle, ramp, sinus, ..) can be applied to the noble metal electrode.
A short description of the device as .PDF can be found here
A publication as .PDF can be found here
A presentaion at the ICCE 2005 as .PDF can be found here
A free version of Acrobat Reader can be found here