Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving glucose or galactose
Reexamination Certificate
2011-06-21
2011-06-21
Lilling, Herbert J. (Department: 1657)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving glucose or galactose
C435S004000, C435S010000, C435S011000, C435S015000, C435S025000, C435S026000, C205S777500
Reexamination Certificate
active
07964372
ABSTRACT:
A test strip or electrochemical sensor for measuring the amount of an analyte in a biological fluid, e.g. the glucose content of whole blood, includes a size self-limiting reagent formulation employing an enzyme system for reaction with the analyte, the reactive system mixed into a water-soluble swellable polymer matrix containing small water-insoluble particles having a nominal size of about 0.05 to 20 μm, preferably about 1 to 10 μm. The weight ratio of the water-insoluble particles to the water-soluble swellable polymer matrix is about 1/2 to 2/1. The reagent formulation is deposited onto a non-porous substrate to form a thin layer about 6-16 μm thick, providing a rapid and stable response to application of a sample, while being insensitive to the amount of the sample.
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Bayer Healthcare LLC
Lilling Herbert J.
Nixon & Peabody LLP
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