Method for immobilizing a polypeptide in a polymer and a membrane produced thereby
US5223124A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1990 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Sep 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/817
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention relates generally to the immobilization or incorporation of polypeptides, especially enzymes or other bioactive polypeptides into polymeric matrixes, especially polyurethane, membranes produced by said polymers, and the utilization of such membranes in biosensors. A preferred type of biosensor is the needle sensor designed for in vivo monitoring of glucose which comprises a core platinum anode (2) coated with an insulating lacquer (3), the anode (2) is situated inside a stainless steel reference cathode (4) which is insulated from the anode (2) by a layer of epoxy resin (5) At one end, of the tip, the electrode (1) has a detection surface (6) which is in an acute angle to the general direction of the electrode (1). At the other end, the base, the electrode (2) is provided with terminals (7) and (8) for the anode (2) and cathode (4), respectively. The terminals (7) and (8) are soldered to leads (9) and (10), respectively, which are connected to instrumentation used when performing measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.