发明名称 |
Method of producing low molecular weight chitin/chitosan and method of producing an osteoconduction substance |
摘要 |
By irradiating <SUP>60</SUP>Co gamma ray to chitin/chitosan, chitin/chitosan having high molecular weight is separated or decomposed into low molecular weight chitin/chitosan. A method of producing an osteoconduction substance comprises the steps of irradiating <SUP>60</SUP>Co gamma ray to chitin/chitosan to produce low molecular weight chitin/chitosan; preparing chitosan sol by dissolving low molecular weight chitin/chitosan in an acidic aqueous solution to obtain a chitosan acidic aqueous solution and kneading the chitosan acidic aqueous solution and apatite powder; and neutralizing the chitosan sol by the use of a neutralizing agent.
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申请公布号 |
US7140882(B2) |
申请公布日期 |
2006.11.28 |
申请号 |
US20020277928 |
申请日期 |
2002.10.23 |
申请人 |
MATSUMOTO DENTAL UNIVERSITY |
发明人 |
ITO MICHIO |
分类号 |
A61K31/722;A61L27/00;A61K6/033;A61K6/06;A61K6/097;A61L26/00;C08B37/08;C08L5/08 |
主分类号 |
A61K31/722 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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