Biodegradable polyphosphoramidates for controlled release of bioactive substances
    1.
    发明申请
    Biodegradable polyphosphoramidates for controlled release of bioactive substances 失效
    用于生物活性物质控制释放的可生物降解的聚磷酸酰胺酯

    公开(公告)号:US20050119450A1

    公开(公告)日:2005-06-02

    申请号:US10500565

    申请日:2002-05-14

    摘要: The present invention is directed to a series of new polycationic biodegradable polyphosphoramidates. Process for making the polymers, compositions containing these polymers and bioactive ligands to enhance the cellular uptake ad intracellular trafficking, articles and methods for delivery of drugs and genes using these polymers are described. A gene delivery system based on these polymers is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. Targeting ligands and molecules that could facilitate gene transfer can be conjugated to polymers to achieve selective and enhanced gene delivery. The current invention also provides a complex composition with buffering capacity.

    摘要翻译: 本发明涉及一系列新的聚阳离子可生物降解的聚磷酸酰胺酯。 描述了制备聚合物的方法,含有这些聚合物的组合物和生物活性配体以增强细胞摄取和细胞内运输,用于递送药物和使用这些聚合物的基因的方法。 基于这些聚合物的基因递送系统通过核酸(DNA或RNA)与聚合物的复合凝聚来制备。 可以促进基因转移的靶向配体和分子可以与聚合物缀合以实现选择性和增强的基因递送。 本发明还提供具有缓冲能力的复合组合物。

    Biodegradable polyphosphates for controlled release of bioactive substances
    2.
    发明申请
    Biodegradable polyphosphates for controlled release of bioactive substances 失效
    可生物降解的聚磷酸盐,用于控释生物活性物质

    公开(公告)号:US20050131200A1

    公开(公告)日:2005-06-16

    申请号:US10499898

    申请日:2002-05-14

    摘要: The present invention is directed to a biodegradable system for the controlled release of bioactive substances. This system comprises novel biodegradable and biocompatible polyphosphoesters that carry positive charges. Process for making these polyphosphoesters, compositions containing these polyphosphoesters and biologically active substances, articles and methods for delivery of drugs and genes using this system are described. A controlled gene delivery system based on these polyphosphoesters is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. The release rates can be manipulated by adjusting the charge ratios of polyphosphoesters to nucleic acids. This gene delivery system yields a higher gene expression in muscle when injected intramuscularly.

    摘要翻译: 本发明涉及用于控制释放生物活性物质的可生物降解的系统。 该系统包含携带正电荷的新型生物可降解和生物相容性聚磷酸酯。 描述了制备这些聚磷酸酯的方法,含有这些聚磷酸酯和生物活性物质的组合物,使用该系统递送药物和基因的制品和方法。 通过核酸(DNA或RNA)与聚合物的复合凝聚来制备基于这些多聚磷酸酯的受控基因递送系统。 可以通过调节多聚磷酸酯与核酸的电荷比来操纵释放速率。 当肌内注射时,该基因递送系统在肌肉中产生较高的基因表达。

    BIODEGRADABLE POLYPHOSPHORAMIDATES FOR CONTROLLED RELEASE OF BIOACTIVE SUBSTANCES

    公开(公告)号:US20090004741A1

    公开(公告)日:2009-01-01

    申请号:US12137450

    申请日:2008-06-11

    IPC分类号: C12N15/87

    CPC分类号: C08L85/02 A61K47/59 C08G79/02

    摘要: The present invention is directed to a series of new polycationic biodegradable polyphosphoramidates. Process for making the polymers, compositions containing these polymers and bioactive ligands to enhance the cellular uptake ad intracellular trafficking, articles and methods for delivery of drugs and genes using these polymers are described. A gene delivery system based on these polymers is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. Targeting ligands and molecules that could facilitate gene transfer can be conjugated to polymers to achieve selective and enhanced gene delivery. The current invention also provides a complex composition with buffering capacity.

    Biodegradable polyphosphates for controlled release of bioactive substances
    4.
    发明授权
    Biodegradable polyphosphates for controlled release of bioactive substances 失效
    可生物降解的聚磷酸盐,用于控释生物活性物质

    公开(公告)号:US07345138B2

    公开(公告)日:2008-03-18

    申请号:US10499898

    申请日:2002-05-14

    IPC分类号: C08G63/68 C08G79/02

    摘要: The present invention is directed to a biodegradable system for the controlled release of bioactive substances. This system comprises novel biodegradable and biocompatible polyphosphoesters that carry positive charges. Process for making these polyphosphoesters, compositions containing these polyphosphoesters and biologically active substances, articles and methods for delivery of drugs and genes using this system are described. A controlled gene delivery system based on these polyphosphoesters is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. The release rates can be manipulated by adjusting the charge ratios of polyphosphoesters to nucleic acids. This gene delivery system yields a higher gene expression in muscle when injected intramuscularly.

    摘要翻译: 本发明涉及用于控制释放生物活性物质的可生物降解的系统。 该系统包含携带正电荷的新型生物可降解和生物相容性聚磷酸酯。 描述了制备这些聚磷酸酯的方法,含有这些聚磷酸酯和生物活性物质的组合物,使用该系统递送药物和基因的制品和方法。 通过核酸(DNA或RNA)与聚合物的复合凝聚来制备基于这些多聚磷酸酯的受控基因递送系统。 可以通过调节多聚磷酸酯与核酸的电荷比来操纵释放速率。 当肌内注射时,该基因递送系统在肌肉中产生较高的基因表达。

    Biodegradable polyphosphoramidates for controlled release of bioactive substances
    5.
    发明授权
    Biodegradable polyphosphoramidates for controlled release of bioactive substances 失效
    用于生物活性物质控制释放的可生物降解的聚磷酸酰胺酯

    公开(公告)号:US07417110B2

    公开(公告)日:2008-08-26

    申请号:US10500565

    申请日:2002-05-14

    IPC分类号: C08G79/02 C08G79/04 C08J3/07

    摘要: The present invention is directed to a series of new polycationic biodegradable polyphosphoramidates. Process for making the polymers, compositions containing these polymers and bioactive ligands to enhance the cellular uptake ad intracellular trafficking, articles and methods for delivery of drugs and genes using these polymers are described. A gene delivery system based on these polymers is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. Targeting ligands and molecules that could facilitate gene transfer can be conjugated to polymers to achieve selective and enhanced gene delivery. The current invention also provides a complex composition with buffering capacity.

    摘要翻译: 本发明涉及一系列新的聚阳离子可生物降解的聚磷酸酰胺酯。 描述了制备聚合物的方法,含有这些聚合物的组合物和生物活性配体以增强细胞摄取和细胞内运输,用于递送药物和使用这些聚合物的基因的方法。 基于这些聚合物的基因递送系统通过核酸(DNA或RNA)与聚合物的复合凝聚来制备。 可以促进基因转移的靶向配体和分子可以与聚合物缀合以实现选择性和增强的基因递送。 本发明还提供具有缓冲能力的复合组合物。

    BIODEGRADABLE POLYPHOSPHORAMIDATES FOR CONTROLLED RELEASE OF BIOACTIVE SUBSTANCES
    6.
    发明申请
    BIODEGRADABLE POLYPHOSPHORAMIDATES FOR CONTROLLED RELEASE OF BIOACTIVE SUBSTANCES 审中-公开
    用于控制释放生物物质的生物可降解聚磷酸酯

    公开(公告)号:US20090012027A1

    公开(公告)日:2009-01-08

    申请号:US12137445

    申请日:2008-06-11

    摘要: The present invention is directed to a series of new polycationic biodegradable polyphosphoramidates. Process for making the polymers, compositions containing these polymers and bioactive ligands to enhance the cellular uptake ad intracellular trafficking, articles and methods for delivery of drugs and genes using these polymers are described. A gene delivery system based on these polymers is prepared by complex coacervation of nucleic acid (DNA or RNA) with polymers. Targeting ligands and molecules that could facilitate gene transfer can be conjugated to polymers to achieve selective and enhanced gene delivery. The current invention also provides a complex composition with buffering capacity.

    摘要翻译: 本发明涉及一系列新的聚阳离子可生物降解的聚磷酸酰胺酯。 描述了制备聚合物的方法,含有这些聚合物的组合物和生物活性配体以增强细胞摄取和细胞内运输,用于递送药物和使用这些聚合物的基因的方法。 基于这些聚合物的基因递送系统通过核酸(DNA或RNA)与聚合物的复合凝聚来制备。 可以促进基因转移的靶向配体和分子可以与聚合物缀合以实现选择性和增强的基因递送。 本发明还提供具有缓冲能力的复合组合物。

    SYSTEM AND METHOD FOR NUTRITION TRACKING

    公开(公告)号:US20210383637A1

    公开(公告)日:2021-12-09

    申请号:US17152786

    申请日:2021-01-19

    申请人: Jun Wang Weijun Zhang

    发明人: Jun Wang Weijun Zhang

    摘要: A nutrition tracking system comprises a nutrition tracking server, a plurality of weight-based food offering terminals, and one or more nutrition and meal information inquiry terminals. Multiple weight-based food offering terminals may be equipped on a food service cart. Each weight-based food offering terminal may be initialized to offer a type of food. The weight-based food offering terminal automatically measures the weight of food taken by a customer or for a customer, calculates the cost of food, and shows the weight and the cost on the display in real time. When the food is paid, the weight-based food offering terminal automatically reports the vending information to the nutrition tracking server. The nutrition tracking server maintains a database for customer meal information and a database for customer nutrition information. Customers may inquire their meal history and nutrition information using the nutrition and meal information inquiry terminals.

    User profile, policy, and PMIP key distribution in a wireless communication network

    公开(公告)号:US10171998B2

    公开(公告)日:2019-01-01

    申请号:US12048883

    申请日:2008-03-14

    摘要: An authentication server may be adapted to (a) authenticate an authentication peer seeking to establish communications via a first network access node; (b) retrieve user profile information associated with the authentication peer; and/or (c) send the user profile information to a network gateway node that facilitates communication services for the authentication peer. A PMIP network node may be adapted to (a) provide wireless network connectivity to an authentication peer via a first network access node; (b) provide a PMIP key to both ends of a PMIP tunnel between the first network access node and a PMIP network node used to provide communications to the authentication peer; (c) provide the PMIP key to a first authenticator associated the first network access node; (d) receive a request at the PMIP network node from a requesting entity to reroute communications for the authentication peer; and/or (e) verify whether the requesting entity knows the PMIP key.