METHOD FOR FORMING A TEST SENSOR

• US 20130270123A1
• Filed: 04/29/2013
• Published: 10/17/2013
• Est. Priority Date: 12/10/2007
• Status: Active Grant

• Current Assignee: Ascensia Diabetes Care Holdings AG (PHC Holdings Corporation)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Jung, Sung-Kwon, Charlton, Steven C., Huang, Dija
• Granted Patent: US 9,080,248 B2
• Time in Patent Office: Days
• US Class Current: 205/333
• CPC Class Codes: C12Q 1/001 Enzyme electrodes
• CPC Class Codes: C25D 11/02 Anodisation
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

Systems and methods for electrochemically oxidizing components of a test-sensor reagent prior to deposition on a test sensor comprise at least a first electrode and a second electrode for contacting the test-sensor reagent. The first electrode and the second electrode may have hollow interior portions for contacting the test-sensor reagent to produce a modified test-sensor reagent having a reduced background current.

Claims

1-19. -19. (canceled)

20. A method for forming a test sensor, the method comprising the acts of:

providing a base, a second layer and a plurality of electrodes, the base and the second layer assisting in forming a channel for receiving a fluid sample; and

placing a modified reagent on the test sensor in close relationship with at least one of the plurality of electrodes, the modified reagent having been oxidized to reduce the background current thereof.

21. The method of claim 20, wherein the modified reagent is prepared by flowing a test-sensor reagent through a system comprising a first electrode and a second electrode and applying a current to at least one of the first electrode or the second electrode to oxidize any oxidizable species in the test-sensor reagent.

22. The method of claim 20, wherein second layer is a spacer, a lid or a combination thereof.