METHOD FOR THE PREPARATION OF BIOCOMPATIBLE POLYMERIC NANOPARTICLES FOR DRUG DELIVERY AND NANOPARTICLES PREPARED THEREBY
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    发明申请
    METHOD FOR THE PREPARATION OF BIOCOMPATIBLE POLYMERIC NANOPARTICLES FOR DRUG DELIVERY AND NANOPARTICLES PREPARED THEREBY 审中-公开
    用于制备药物递送的生物成分聚合物纳米颗粒的方法及其制备的纳米颗粒

    公开(公告)号:US20100303922A1

    公开(公告)日:2010-12-02

    申请号:US12597451

    申请日:2008-04-22

    IPC分类号: A61K9/14 A61K31/337 A61P35/00

    摘要: Disclosed are biocompatible polymeric nanoparticles for drug delivery and a method for preparing the same. They can be prepared by mixing a tri-block copolymer, PEG, and a drug at a predetermined temperature to give a homogeneous polymeric mixture; solidifying the homogeneous polymeric mixture at room temperature; and dissolving the solidified polymeric mixture in an aqueous solution. Based on a polymer melting process, the method makes it easy to produce poloxamer nanoparticles at low cost. The nanoparticles show desired particle sizes suitable for use in drug delivery and a uniform particle size distribution. Consisting of a bilayer structure, the nanoparticles can contain sparingly soluble drugs. Also, the nanoparticles contain no organic solvents and are thus safe to the body because they are free of organic solvent residuals. Further, after being administered into the body, the nanoparticles with a high content of sparingly soluble drug entrapped therein can safely deliver the drug to target sites and stably release the drug at a controlled rate.

    摘要翻译: 公开了用于药物递送的生物相容性聚合物纳米颗粒及其制备方法。 它们可以通过在预定温度下混合三嵌段共聚物PEG和药物来制备均匀的聚合物混合物; 在室温下固化均匀的聚合物混合物; 并将固化的聚合物混合物溶解在水溶液中。 基于聚合物熔融工艺,该方法可以以低成本制备泊洛沙姆纳米粒子。 纳米颗粒显示适合用于药物递送和均匀粒度分布的所需粒度。 由双层结构构成,纳米粒子可以含有微溶药物。 此外,纳米颗粒不含有机溶剂,因此对身体是安全的,因为它们不含有机溶剂残留物。 此外,在被施用于体内之后,具有高含量的微溶药物的纳米颗粒被包埋在其中可以将药物安全地递送到靶位点并以受控的速率稳定地释放药物。