David D Cunningham, Susan B Brontman, Jill M Geist, R Hayes Helgren, Timothy P Henning, Kenneth S Johnson, Laura S Morici, Thomas G Schapira, Neal T Sleszynski: Biosensor with a membrane containing biologically active material. Abbott Laboratories, Robert E Wexler, May 10, 1994: US05310469 (313 worldwide citation)

A sensor for measuring the concentration of an analyte in a solution is disclosed. The sensor may be adapted for use as either an amperometric or a potentiometric sensor. It includes a membrane having a biologically active protein immobilized within. The membrane is attached and reliably sealed to a ...

Ted J Hanagan, Lance K Safford, Steven G Schultz, Jay R Ford, Edmund T Marciniec, Kenneth S Johnson, John D Norlie Jr: Diagnostic flow cell device. Abbott Laboratories, May 28, 1996: US05520787 (270 worldwide citation)

The present invention provides a diagnostic flow cell for determining the presence or amount of an analyte which may be contained in a test sample. The flow cell comprises a spacing layer having a longitudinal void disposed between a pair of opposed substrates. The spacing layer and the opposed subs ...

David D Cunningham, Kenneth S Johnson: Preparation of a compressed membrane containing immobilized biologically acting material. Abbott Laboratories, Robert F Wexler, February 1, 1994: US05283186 (2 worldwide citation)

A porous carrier containing an immobilized biologically active material is prepared in which a relatively large amount of an enzyme or an antibody has been immobilized in a manner that produces a low diffusion resistance toward reagents and products. The porous carrier is produced by fixing enzymes ...