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    • 33. 发明授权
    • Lipid derivatives of antiviral nucleosides: liposomal incorporation and method of use
    • 抗病毒核苷的脂质衍生物:脂质体掺入和使用方法
    • US06448392B1
    • 2002-09-10
    • US08415769
    • 1995-04-03
    • Karl Y. HostetlerRaj KumarLouise M. Stuhmiller
    • Karl Y. HostetlerRaj KumarLouise M. Stuhmiller
    • A61K3722
    • B82Y5/00A61K47/542A61K47/544A61K47/548C07H15/04C07H19/04C07H19/06C07H19/16
    • Compounds are disclosed for treating AIDS, herpes, and other viral infections by means of lipid derivatives of antiviral agents. The compounds consist of nucleoside analogues having antiviral activity which are linked, commonly through a phosphate group at the 5′ position of the pentose residue, to one of a selected group of lipids. The lipophilic nature of these compounds provide advantages over the use of the nucleoside analogue alone. It also makes it possible to incorporate them into the lamellar structure of liposomes, either alone or combined with similar molecules. In the form of liposomes, these antiviral agents are preferentially taken up by macrophages and monocytes, cells which have been found to harbor the target HIV virus. Additional site specificity may be incorporated into the liposomes with the addition of ligands, such as monoclonal antibodies or other peptides or proteins which bind to viral proteins. Effective nucleoside analogues are dideoxynucleosides, azidothymine (AZT), and acyclovir; lipid groups may be glycolipids, sphingolipids, phospholipids or fatty acids. The compounds persist, after intracellular hydrolysis, as phosphorylated or non-phosphorylated antiviral nucleosides. The compounds are effective in improving the efficacy of antiviral nucleoside analogues by prolonging the antiviral activity after the administration of the drug has ended, and in preventing retroviral replication in HIV infections which have become resistant to therapy with conventional forms of the antiretroviral agents.
    • 公开了通过抗病毒剂的脂质衍生物治疗AIDS,疱疹和其它病毒感染的化合物。 所述化合物由具有抗病毒活性的核苷类似物组成,通常通过戊糖残基的5'位置的磷酸基团连接到所选择的一组脂质之一中。 这些化合物的亲油性质优于单独使用核苷类似物的优点。 它还使得可以将它们单独或与类似分子组合在一起,将它们并入脂质体的层状结构中。 以脂质体的形式,这些抗病毒剂优先被巨噬细胞和单核细胞(已被发现携带目标HIV病毒的细胞)吸收。 可以通过加入配体如单克隆抗体或其它与病毒蛋白结合的肽或蛋白质将其中的位点特异性引入脂质体。 有效的核苷类似物是双脱氧核苷,叠氮胸腺嘧啶(AZT)和阿昔洛韦; 脂质组可以是糖脂,鞘脂,磷脂或脂肪酸。 化合物在细胞内水解后持续存在,作为磷酸化或非磷酸化的抗病毒核苷。 该化合物通过在给药药物结束后延长抗病毒活性,以及​​在用常规形式的抗逆转录病毒药物治疗已经变得耐药的HIV感染中预防逆转录病毒复制,有效地改善了抗病毒核苷类似物的功效。
    • 39. 发明授权
    • Flexible substrate plating rack
    • 柔性基板电镀架
    • US06299745B1
    • 2001-10-09
    • US09564081
    • 2000-05-03
    • Raj KumarCheryle Rattey
    • Raj KumarCheryle Rattey
    • C25B900
    • C25D17/08
    • A rack suitable for holding a flexible substrate panel, the rack having a plurality of clamps for providing current to a panel clamped to the rack, the clamps being positioned to uniformly distribute current to the substrate. Seven clamps are used to hold a flexible substrate panel bearing a copper seed or other conductive layer in place on the rack wherein one tautens the substrate while attaching the clamps so as to clamp the substrate in a “wrinkle free” manner. The seven clamps are arranged with 3 clamps on each of the left and right sides and one clamp on the bottom, the clamps making electrical contact with conductive layers of both the front and back surfaces of the substrate panel. The arrangement of the clamps provides adequate support to the substrate, provides for a good and uniform current distribution on the substrate, and allows a relatively large amount of current to flow through the panel without burning off the conductive/seed layers. In one rack, a spring clamp biased open is used wherein a thumbscrew is tightened against a surface of the clamp to force it against its spring into a closed, clamping position. The use of the spring clamp prevents the rotating pressure point contact which a thumbscrew causes.
    • 适于保持柔性基板的机架,所述机架具有多个夹具,用于向被夹紧在所述机架上的面板提供电流,所述夹具被定位成均匀地将电流分布到所述基板。 七个夹具用于将一个带有铜种子或其他导电层的柔性基板保持在支架上的适当位置,其中,在安装夹具的同时使衬底拧紧,以便以“无皱纹”的方式夹紧衬底。 七个夹具在左右两侧分别设有3个夹具,底部设有一个夹具,夹具与衬底面板的前后表面的导电层电接触。 夹具的布置为基板提供了足够的支撑,在基板上提供良好且均匀的电流分布,并且允许相对大量的电流流过面板而不会导致导电/籽晶层的烧毁。 在一个机架中,使用偏压打开的弹簧夹,其中指旋螺钉被紧固在夹具的表面上,以迫使其抵抗其弹簧进入关闭的夹紧位置。 使用弹簧夹可以防止指旋螺钉造成的旋转压力点接触。