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    • 8. 发明授权
    • Biocompatible surfaces
    • 生物相容表面
    • US4348329A
    • 1982-09-07
    • US218556
    • 1980-12-22
    • Dennis Chapman
    • Dennis Chapman
    • A61K9/127A61L15/44A61L27/16A61L29/08A61L33/00A61L33/06B01D67/00C07C51/353C07C57/18C07F9/10C08F38/00C07F9/02A23J7/00
    • B01D67/0088A61K9/1273A61L15/44A61L27/16A61L29/085A61L33/00A61L33/064B01D67/0093C07C51/353C07C57/18C07F9/10C08F38/00A61L2300/626B01D2323/30B01D2323/34Y10S623/92
    • New phospholipids containing a conjugated di-yne system have the formula: ##STR1## wherein at least one of B.sub.1 and B.sub.2 is a group of the formula--(CO).sub.p --X.sub.1 --C.tbd.C--C.tbd.C--Y.sub.1wherein p is 0 or 1, X.sub.1 is a direct bond or a divalent aliphatic or cycloaliphatic group, Y.sub.1 is H or a monovalent aliphatic or cycloaliphatic group, the total number of carbon atoms in X.sub.1 and Y.sub.1 in each of B.sub.1 and/or B.sub.2 being 8 to 26; and the other of B.sub.1 and B.sub.2 is either (a) the same or a different group of the formula:--(CO).sub.p --X.sub.1 --C.tbd.C--C.tbd.C--Y.sub.1where X.sub.1, Y.sub.1 or p are as defined above;or (b) is an aliphatic or cycloaliphatic group containing at least 8 carbon atoms; n is 0 or 1, m is 2, 3 or 4 and each R independently represents an alkyl group containing 1 to 4 carbon atoms, and are prepared by esterification and/or etherification of glycerol by conventional techniques. The conjugated di-yne systems can be cross-linked by actinic radiation to give intermolecular and, in certain cases, also intramolecular cross-linking. Thin layers of the phospholipids can be coated onto substrates subsequently to be brought into contact with blood or other body fluids and then cross-linked to give polymer coated surfaces which have a reduced tendency to initiate blood coagulation, for example, compared to untreated surfaces. Artificial lenses for the human eye treated in this way have a reduced tendency to cause endothelial damage. The phospholipids of the invention can also be formed into liposomes and the conjugated di-yne system then cross-linked. Physiologically active materials such as drugs, enzymes or antigens can be incorporated into the liposomes which can then be used as prolonged release formulations.
    • 含有共轭二烯体系的新型磷脂具有下式:其中B1和B2中的至少一个是式 - (CO)p-X1-C 3BOND CC 3BOND C-Y1的基团,其中p为0或 1,X1是直接键或二价脂族或脂环族基团,Y1是H或一价脂族或脂环族基团,B1和/或B2各自的X1和Y1中的碳原子总数为8-26; B1和B2中的另一个是(a)相同或不同的下式: - (CO)p-X1-C 3BOND C-C 3BOND C-Y1,其中X1,Y1或p如上定义; 或(b)是含有至少8个碳原子的脂族或脂环族基团; n为0或1,m为2,3或4,各R独立地表示含有1至4个碳原子的烷基,并且通过常规技术酯化和/或醚化甘油来制备。 共轭二烯系统可以通过光化辐射交联以产生分子间,在某些情况下也是分子内的交联。 磷脂的薄层可以涂覆在基底上,随后与血液或其他体液接触,然后交联以得到例如与未处理的表面相比具有降低的凝血发生倾向的聚合物涂覆的表面。 以这种方式处理的人眼的人造镜片具有降低的引起内皮损伤的倾向。 本发明的磷脂也可以形成脂质体,然后共轭二烯系统交联。 可以将生理活性物质如药物,酶或抗原掺入脂质体中,然后将其用作延长释放制剂。