Hydrophilic polyurethane membranes for electrochemical glucose sensors
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United States of America Patent
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Jun 21, 1994
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N/A
app pub date -
Oct 4, 1991
filing date -
Oct 4, 1991
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Abstract
Homogeneous membranes permeable to oxygen and glucose composed of hydrophilic polyurethanes that are capable of absorbing from 10 to 50% of their dry weight of water. Variations in the composition of the hydrophilic polyurethanes make possible the fabrication of membranes in which the ratios of the diffusion coefficients of oxygen to glucose can be varied over a wide range. These membranes can be used in the fabrication of an electrochemical glucose sensor intended for use in vivo as an aid in the treatment of diabetes mellitus.
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