Formulation and Storage Method to Enhance the Enzyme and Sensor Stabilities
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United States of America Patent
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Jun 11, 2015
app pub date -
Dec 6, 2013
filing date -
Dec 6, 2013
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Abstract
An analyte sensor and method of making are provided. The analyte sensor includes a crosslinked, hydrophilic copolymer in contact with a surface of an electrode; and an analyte sensing component embedded within the crosslinked, hydrophilic copolymer, where the analyte sensing component is surrounded by a buffer having a predetermined buffering component and pH value and where the crosslinked, hydrophilic copolymer includes: backbone chains having first methacrylate-derived units, each having a first hydrophilic side chain; second methacrylate-derived units, each having a second hydrophilic side chain, where the first and second side chains are the same or different; third methacrylate-derived units; and hydrophilic crosslinks between third methacrylate-derived units in different backbone chains. The analyte sensor may be maintained at a humidity level of less than 25% to maintain its performance during storage.
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