Selective permeable membrane and electrode using the same
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United States of America Patent
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Sep 7, 1993
Grant Date -
N/A
app pub date -
Mar 7, 1990
filing date -
Mar 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrode comprising an electrically conductive base, and a selectively permeable membrane which is produced by forming a membrane from a mixed solution comprising (a) albumin, (b) at least one type of crosslinking agent and (c) chitosan. The selectively permeable membrane is useful, e.g., in conjuction with an electrode. An enzyme electrode is also provided having the selectively permeable membrane disposed on the electrode and an immobilized enzyme membrane disposed on the selectively permeable membrane. The immobilized enzyme membrane is prepared by incorporating a carboxylate into the solution containing the enzyme and an aldehyde as the crosslinking agent. The crosslinking is effected by heating or drying.
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