Device and methods of using device for detection of hyperammonemia
First Claim
Patent Images
1. A biosensor comprising:
- (i) at least a first and second vessel;
(ii) a fluid exchange opening positioned between the first and the second vessel;
(iii) at least one conduit in fluid communication with the at least first vessel, the at least one conduit configured to receive a fluid from a point external to the biosensor; and
(iv) a membrane positioned at the fluid exchange opening;
wherein the membrane comprises an ionomer;
wherein the at least one conduit is configured to hold a sample volume from about 5 μ
l to about 100 μ
l; and
wherein the first vessel or the second vessel comprises, individually or in combination;
a hypohalite, an alkali buffer, and at least one;
phenolic reagent or indophenol related compound.
3 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure relates to a bio-sensor capable of measuring the total concentration of one or a plurality of ammonia or ammonium ions with the use of indophenol reagents in the presence of an ionomer. In some embodiments, the biosensor comprises a perflurinated membrane that comprises an ionomer in contact with an alkaline buffer in a vessel configured to receive a sample, such as whole blood. The disclosure also relates to a method of detecting or quantifying the ammonia or ammonium ion concentration in whole blood in a point of care biosensor without reliance on gas chromatography or any measurement that takes more than about twenty minutes.
20 Citations
18 Claims
-
1. A biosensor comprising:
-
(i) at least a first and second vessel; (ii) a fluid exchange opening positioned between the first and the second vessel; (iii) at least one conduit in fluid communication with the at least first vessel, the at least one conduit configured to receive a fluid from a point external to the biosensor; and (iv) a membrane positioned at the fluid exchange opening; wherein the membrane comprises an ionomer; wherein the at least one conduit is configured to hold a sample volume from about 5 μ
l to about 100 μ
l; andwherein the first vessel or the second vessel comprises, individually or in combination;
a hypohalite, an alkali buffer, and at least one;
phenolic reagent or indophenol related compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A kit comprising a solid support that comprises:
-
(i) at least a first and second vessel; (ii) a fluid exchange opening positioned between the at least first and second vessel; (iii) at least one conduit in fluid communication with the at least first vessel, the at least one conduit configured to receive a fluid from a point external to the solid support; and (iv) a membrane positioned at the fluid exchange opening; wherein the membrane comprises an ionomer; wherein the at least one conduit is configured to hold a sample volume from about 5 μ
l to about 100 μ
l; andwherein the first vessel or the second vessel comprise, individually or in combination;
hypohalite, an alkali buffer, and at least one indophenol reagent or indophenol related compound.
-
-
17. A test strip comprising a solid support comprising:
-
(i) at least a first and second vessel; (ii) a fluid exchange opening positioned between the at least first and second vessel; (iii) at least one conduit in fluid communication with the at least first vessel, the at least one conduit configured to receive a fluid from a point external to the biosensor; and (iv) a membrane positioned at the fluid exchange opening; wherein the membrane comprises an ionomer, and wherein the first vessel or the second vessel comprise, individually or in combination;
hypohalite, an alkali buffer, and at least one;
phenolic reagent, indophenol reagent or indophenol related compound. - View Dependent Claims (18)
-
Specification