Cellulosic-based resistance domain for an analyte sensor
First Claim
1. An electrochemical analyte sensor for measuring a concentration of an analyte in a host, the sensor comprising an electroactive surface and a membrane system disposed thereon, wherein the membrane system comprises an interference domain configured to resist passage therethrough of at least one interfering species, an enzyme domain configured to catalyze a reaction of the analyte with a co-reactant, and a resistance domain configured to control a flux of the analyte therethrough, wherein the resistance domain comprises a cellulosic polymer.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates generally to devices for measuring an analyte in a host. More particularly, the present invention relates to devices for measurement of glucose in a host that incorporate a cellulosic-based resistance domain.
186 Citations
68 Claims
- 1. An electrochemical analyte sensor for measuring a concentration of an analyte in a host, the sensor comprising an electroactive surface and a membrane system disposed thereon, wherein the membrane system comprises an interference domain configured to resist passage therethrough of at least one interfering species, an enzyme domain configured to catalyze a reaction of the analyte with a co-reactant, and a resistance domain configured to control a flux of the analyte therethrough, wherein the resistance domain comprises a cellulosic polymer.
- 26. An electrochemical analyte sensor for measuring an analyte in a host, the sensor comprising an electroactive surface and a membrane system disposed thereon, wherein the membrane system comprises a resistance domain configured to control a flux of an analyte therethrough, wherein the resistance domain comprises cellulose acetate comprising at least about 7 wt. % hydroxyl.
- 48. An electrochemical analyte sensor for measuring an analyte in a host, the sensor comprising an electroactive surface and a membrane system disposed thereon, wherein the membrane system comprises a resistance domain configured to control a flux of an analyte therethrough, wherein the resistance domain comprises cellulose acetate comprising less than about 35 wt. % acetyl.
Specification