Device and methods of using device for detection of aminoacidopathies
First Claim
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1. A biosensor comprising:
- at least one electrically conductive support, the at least one electrically conductive support attached to a hydrogel, the hydrogel comprising at least one electron mediator, at least one reduction agent, and at least one metabolic enzyme from a thermophilic bacterial cell or functional fragment thereof, wherein the hydrogel comprises alginate; and
an amperometer and/or voltmeter operably connected to the at least one electrically conductive support;
wherein the at least one electrically conductive support comprises a phenylalanine dehydrogenase or functional fragments thereof; and
wherein the phenylalanine dehydrogenase or functional fragment thereof comprises at least about 70% sequence identity to SEQ ID NO;
1 or SEQ ID NO;
2.
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Abstract
The present invention relates to a biosensor capable of measuring the total concentration of one or a plurality of amino acids with the use of a reagentless system comprising an electrode modified by hydrogel that comprises at least one enzyme that oxidizes at least one substrate that is at least one amino acid. In some embodiments, the biosensor comprises a hydrogel comprising alginate. In some embodiments, the biosensor comprises use of a thermophilic bacterial metabolic enzyme immobilized or attached to the hydrogel.
36 Citations
19 Claims
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1. A biosensor comprising:
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at least one electrically conductive support, the at least one electrically conductive support attached to a hydrogel, the hydrogel comprising at least one electron mediator, at least one reduction agent, and at least one metabolic enzyme from a thermophilic bacterial cell or functional fragment thereof, wherein the hydrogel comprises alginate; and an amperometer and/or voltmeter operably connected to the at least one electrically conductive support; wherein the at least one electrically conductive support comprises a phenylalanine dehydrogenase or functional fragments thereof; and wherein the phenylalanine dehydrogenase or functional fragment thereof comprises at least about 70% sequence identity to SEQ ID NO;
1 or SEQ ID NO;
2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A biosensor comprising:
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at least one electrically conductive support, the at least one electrically conductive support attached to at least one hydrogel, the hydrogel comprising at least one electron mediator, at least one reduction agent, and at least one metabolic enzyme or functional fragment thereof; wherein the at least one enzyme or functional fragment thereof has an amino acid sequence at least 70% homologous to SEQ ID NO;
1 or at least 70% homologous to a functional fragment of SEQ ID NO;
1; andan amperometer and/or voltmeter operably connected to the at least one electrically conductive support. - View Dependent Claims (18, 19)
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Specification