ELECTROSTATIC COATING OF PARTICLES FOR DRUG DELIVERY
    32.
    发明申请
    ELECTROSTATIC COATING OF PARTICLES FOR DRUG DELIVERY 审中-公开
    用于药物递送的颗粒的静电涂层

    公开(公告)号:US20100196492A1

    公开(公告)日:2010-08-05

    申请号:US12530330

    申请日:2008-03-07

    摘要: A system for electrostatically coating particles is provided. The system is particularly well suited for coating charged drug delivery particles (e.g., nanoparticles, microparticles) with a coating of opposite charge. The coating may include a targeting moiety such as a small molecule ligand, peptide, protein, aptamer, etc. The coated particles are biodegradable and/or biocompatible, have a near neutral zeta (ξ) potential, and are stable in serum. The invention also provides pharmaceutical compositions and kits including the inventive coated particles. Methods of preparing and using the inventive particles are also included.

    摘要翻译: 提供了用于静电涂覆颗粒的系统。 该系统特别适合用具有相反电荷的涂层涂覆带电药物递送颗粒(例如,纳米颗粒,微粒)。 涂层可以包括靶向部分,例如小分子配体,肽,蛋白质,适体等。包被的颗粒是可生物降解的和/或生物相容的,具有接近中性的ζ(&xgr)电位,并且在血清中是稳定的。 本发明还提供药物组合物和试剂盒,包括本发明的涂覆颗粒。 还包括制备和使用本发明颗粒的方法。

    BIODEGRADABLE POLY(BETA-AMINO ESTERS) AND USES THEREOF
    35.
    发明申请
    BIODEGRADABLE POLY(BETA-AMINO ESTERS) AND USES THEREOF 有权
    生物可降解聚(氨基甲酸酯)及其用途

    公开(公告)号:US20100036084A1

    公开(公告)日:2010-02-11

    申请号:US12507999

    申请日:2009-07-23

    IPC分类号: C08G63/685

    摘要: Poly(β-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.

    摘要翻译: 描述了从双(仲胺)或伯胺向双(丙烯酸酯)共轭加成制备的聚(β-氨基酯)。 还提供了从市售的原料制备这些聚合物的方法。 这些含叔胺的聚合物优选是可生物降解的和生物相容的并且可以用于各种药物递送系统中。 鉴于这些聚合物的聚(胺)性质,它们特别适用于递送多核苷酸。 已经制备了含有聚合物/多核苷酸复合物的纳米颗粒。 本发明的聚合物也可以用于包封待递送的其它试剂。 考虑到缓冲其周围环境的pH值,它们特别适用于提供不稳定剂。

    CROSSLINKED, DEGRADABLE POLYMERS AND USES THEREOF
    40.
    发明申请
    CROSSLINKED, DEGRADABLE POLYMERS AND USES THEREOF 有权
    交联,可降解的聚合物及其用途

    公开(公告)号:US20080145338A1

    公开(公告)日:2008-06-19

    申请号:US11758078

    申请日:2007-06-05

    摘要: Acrylate-terminated poly(beta-amino esters) are cross-linked to form materials useful in the medical as well as non-medical field. The polymeric starting material is combined with a free radical initiator, either a thermal initiator or a photoinitiator, and the mixture for cross-linking is heated or exposed to light depending on the initiator used. The resulting materials due to the hydrolysable ester bond in the polymer backbone are biodegradable under physiological conditions. These cross-linked materials are particular useful as drug delivery vehicles, tissue engineering scaffolds, and in fabricating microdevices. The materials may also be used as plastics, coating, adhesives, inks, etc. The cross-linked materials prepared exhibit a wide range of degradation times, mass loss profiles, and mechanical properties. Therefore, the properties of the material may be tuned for the desired use. The high-throughput approach to preparing a library of cross-linked poly(beta-amino esters) allows for the rapid screening and design of degradable polymers for a variety of applications.

    摘要翻译: 丙烯酸酯封端的聚(β-氨基酯)被交联以形成用于医疗和非医学领域的材料。 将聚合起始材料与自由基引发剂,热引发剂或光引发剂组合,并且根据所使用的引发剂将用于交联的混合物加热或暴露于光。 由于聚合物骨架中的可水解的酯键导致的所得材料在生理条件下是可生物降解的。 这些交联材料特别用作药物递送载体,组织工程支架和制造微型装置。 这些材料也可以用作塑料,涂料,粘合剂,油墨等。制备的交联材料表现出广泛的降解时间,质量损失曲线和机械性能。 因此,可以调整材料的性质以达到期望的用途。 制备交联聚(β-氨基酯)文库的高通量方法允许快速筛选和设计可降解聚合物用于各种应用。