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    • 4. 发明申请
    • POLYMER-BASED MICROSTRUCTURES
    • 聚合物微结构
    • US20110221083A1
    • 2011-09-15
    • US13047426
    • 2011-03-14
    • Bryan E. LaulichtSasha Bakhru
    • Bryan E. LaulichtSasha Bakhru
    • B29B9/12B05B1/14
    • B01J13/14B01J13/08
    • The present invention relates to the fields of controlled release of drugs, proteins, nucleic acids, and other pharmaceuticals. It also relates to delivery systems for these agents and other compounds. The invention also relates to stable encapsulation of cells and molecules. The invention provides a population of microstructures comprising a permeable polymer shell, wherein the standard variance in the volume of the microstructures is usually less than or equal to 20%, preferably 10%, of the mean, and wherein the diffusion characteristics of the polymer shell vary within the population of microstructures. It also provides for an apparatus and a method of forming a population of microstructures, which method for making microstructures by introducing drops of a polymer solution into a receiving solution under conditions that permit cross-linking of the polymer in the receiving solution. Microstructures of calcium-cross-linked alginate with a chitosin capsule are disclosed.
    • 本发明涉及药物,蛋白质,核酸和其他药物的控制释放领域。 它还涉及这些试剂和其它化合物的递送系统。 本发明还涉及细胞和分子的稳定包封。 本发明提供了包含可渗透聚合物壳的微观组织群,其中微结构体积的标准差异通常小于或等于平均值​​的20%,优选10%,并且其中聚合物壳的扩散特性 在微观结构的群体内变化。 它还提供了一种形成微观结构群体的装置和方法,该方法通过在允许聚合物在接收溶液中交联的条件下将聚合物溶液的液滴引入接收溶液来制备微结构。 公开了钙交联藻酸盐与壳聚糖胶囊的微结构。
    • 5. 发明申请
    • CHEMICALLY CROSS-LINKED ELASTOMERIC MICROCAPSULES
    • 化学交联的弹性微球
    • US20080175918A1
    • 2008-07-24
    • US11971507
    • 2008-01-09
    • Bryan E. Laulicht
    • Bryan E. Laulicht
    • A61K9/50A61P31/00A61P35/00
    • A61K9/5031
    • The present invention relates to the fields of stably encapsulating oral care, skin care, scented, flavoring agents for cued release, and therapeutic agents for extended and sustained release. The invention relates to the stable microencapsulation of these agents for incorporation into dentifrices, topical ointments, microwavable food products, dryer sheets and chewing gums to be released during brushing, applying, heating, tumbling, and masticating respectively. Additionally, the invention encompasses extended and sustained release formulations that achieve reservoir-type delivery of therapeutic agents. The invention discloses methods for manufacturing and post-processing populations of chemically cross-linked elastomeric microcapsules allowing for the incorporation of encapsulated agents into a wide range of formulations without significantly altering their physio-chemical properties while providing for the cued delivery of the encapsulated agent upon the reception of a single or multiple mechanical or thermo-mechanical cues, or extended delivery via diffusion.
    • 本发明涉及稳定包封口腔护理,皮肤护理,香味,调理释放的调味剂以及用于延长和持续释放的治疗剂的领域。 本发明涉及这些试剂稳定的微胶囊化,用于掺入洁牙剂,局部软膏,微波加工食品,干燥片和口香糖中,分别在刷牙,涂抹,加热,翻滚和咀嚼过程中释放。 另外,本发明包括实现治疗剂的储库型递送的延长和持续释放制剂。 本发明公开了用于制造和后处理化学交联的弹性体微胶囊的种群的方法,其允许将包封的试剂掺入到宽范围的制剂中,而不显着改变其生理化学性质,同时提供包封的药剂的提供递送 接收单个或多个机械或热机械线索,或通过扩散延长传送。