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    • 32. 发明申请
    • Supramolecular Functionalization of Graphitic Nanoparticles for Drug Delivery
    • 石墨纳米粒子用于药物递送的超分子官能化
    • US20090087493A1
    • 2009-04-02
    • US12178891
    • 2008-07-24
    • Hongjie DaiZhuang LiuXiaolin LiXiaoming Sun
    • Hongjie DaiZhuang LiuXiaolin LiXiaoming Sun
    • A61K9/16C12N5/00A61K39/395
    • A61K47/48215A61K9/0092A61K31/337A61K31/704A61K38/16A61K39/395A61K47/62A61K47/68A61K47/6925A61K47/6929A61K47/6949B82Y5/00Y10T428/2982
    • Disclosed are nanoparticles, such as carbon nanotubes or other materials having extended aromatic surfaces (e.g., graphene sheet or nanotube), which are used to deliver active agents such as drugs, labels or dyes (termed for convenience a “drug”) to the interior of cells. The nanoparticles are functionalized by a hydrophilic polymer to render them stable in suspension. This molecule may be covalently attached to the nanoparticle, or may be adsorbed thereto as an amphiphilic molecule. The nanoparticles are coupled to the drug through supramolecular bonding i.e., binding to the exterior of the nanoparticle through π-stacking. The drug may also be covalently bonded to the hydrophilic polymer, which is coupled to the nanoparticle through supramolecular bonding. The drug is therefore capable of release in the cell exterior. The drug is more rapidly released at lower pH, as found e.g., in tumor cells. The drug-coupled, functionalized nanoparticles may also be targeted to specific cells through modification of the hydrophilic polymer, e.g., by adding an RGD peptide, or an antibody, which is targeted to cells expressing integrins, or an antibody directed to a cell surface marker. The drug may also be linked to a branched chain hydrophilic polymer, so that each polymer molecule carries more than one drug bound by a cleavable linker.
    • 公开了纳米颗粒,例如碳纳米管或具有延伸的芳族表面的其它材料(例如,石墨烯片或纳米管),其用于将活性剂如药物,标记或染料(为方便起见称为“药物”)递送到内部 的细胞。 纳米颗粒由亲水性聚合物官能化,使其在悬浮液中稳定。 该分子可以共价连接到纳米颗粒上,或者可以作为两亲分子被吸附。 纳米颗粒通过超分子键合与药物偶联,即通过π-堆叠与纳米颗粒的外部结合。 该药物也可以与亲水性聚合物共价键合,亲水性聚合物通过超分子键合与纳米颗粒偶联。 因此,该药物能够在细胞外释放。 药物在较低的pH下更快速释放,例如在肿瘤细胞中发现。 药物偶联的官能化纳米颗粒也可以通过改性亲水性聚合物来靶向特定细胞,例如通过添加靶向表达整联蛋白的细胞的RGD肽或抗体或针对细胞表面标记的抗体 。 药物也可以连接到支链亲水性聚合物,使得每个聚合物分子携带多于一种可切割接头结合的药物。
    • 37. 发明授权
    • Computer account management system and realizing method thereof
    • 计算机帐户管理系统及其实现方法
    • US09047462B2
    • 2015-06-02
    • US14342121
    • 2012-04-18
    • Zhiwei XuGuojie LiXiaolin LiYi XieQiang Yue
    • Zhiwei XuGuojie LiXiaolin LiYi XieQiang Yue
    • G06F21/45H04L9/32H04L29/06
    • G06F21/45H04L9/3263H04L63/0815
    • A computer account management system includes: an account management subsystem; an information asset management subsystem; an authentication (integrated) subsystem; a service (integrated) subsystem; and an account portal subsystem; wherein the account management subsystem manages information of physical accounts and logical account numbers; wherein the information asset management subsystem manages data information resources generated by network activities of physical account information; wherein the authentication subsystem provides an authentication integrated interface to the physical account numbers; wherein the service subsystem is a customizable interface which is open to internet or local network; wherein the account portal provides interfaces and tools of login, service list management of services subscribed or bought by the account, account information management and information asset management. The computer account management system is not bundled with services, seamlessly integrated with the user information asset and is lifetime-valid. The system can be used in account management of the internet.
    • 计算机帐户管理系统包括:帐户管理子系统; 信息资产管理子系统; 一个认证(集成)子系统; 一个服务(集成)子系统; 和帐户门户子系统; 其中所述帐户管理子系统管理物理账户和逻辑账号的信息; 其中信息资产管理子系统管理由物理账户信息的网络活动产生的数据信息资源; 其中所述认证子系统向所述实体帐号提供认证集成接口; 其中所述服务子系统是对互联网或本地网络开放的可定制接口; 其中帐户门户提供登录的接口和工具,帐户订阅或购买的服务的服务列表管理,帐户信息管理和信息资产管理。 计算机帐户管理系统不与服务捆绑,与用户信息资产无缝集成,具有终身有效性。 该系统可用于互联网的帐户管理。