Chitosan or Hyaluronic Acid-Poly(Ethylene Oxide)-and Chitosan-Hyaluronic Acid-Poly(Ethylene Oxide)-Based Hydrogel and Manufacturing Method Therefor
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Aug 28, 2006
filing date -
Jan 19, 2006
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Abandoned
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Abstract
Disclosed are a chitosan-chitosan-polyethylene oxide hydrogel formed via covalent bonding between chitosan derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; a hyaluronic acid-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between hyaluronic acid derivatives crosslinked with an acrylate or methacrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof; and a chitosan-hyaluronic acid-polyethylene oxide hydrogel formed via covalent bonding between a chitosan derivative crosslinked with a (meth)acrylate functional group-containing substance as well as a hyaluronic acid derivative crosslinked with a (meth) acrylate functional group-containing substance and a thiol functional group-containing substance and hydrogel microbeads thereof.
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