首页> 外国专利> Multiparticle of ciprofloxacin-HCl encapsulated low molecular weight water-soluble chitosan microspheres coated with polymer and preparation method thereof

Multiparticle of ciprofloxacin-HCl encapsulated low molecular weight water-soluble chitosan microspheres coated with polymer and preparation method thereof

机译:聚合物包覆的环丙沙星盐酸盐包裹的低分子量水溶性壳聚糖微球的制备及其制备方法

摘要

A multiparticle of which a polymer is coated with a ciprofloxacin-HCl encapsulated low molecular weight water-soluble chitosan minute particle is provided to manufacture with a simple process, release the drug for a long time without toxicity and use for antibiotics against a gram-positive bacteria and gram-negative bacteria. A method for manufacturing a muliparticle, which a polymer is coated with a ciprofloxacin-encapsulated low molecular weight water-soluble chitosan minute particle, comprises: a step of mixing a low molecular weight water-soluble chitosan and ciprofloxacin and stirring under the presence of a solvent; a step of drying the mixture and producing the ciprofloxacin-encapsulated low molecular weight water-soluble chitosan minute particle; a step of producing a polymer solution; and a step of dispersing the ciprofloxacin-encapsulated low molecular weight water-soluble chitosan minute particle in the polymer solution. The molecular weight of the water-soluble chitosan is 1,000-50,000 Da. The solvent used in the polymer solution is the acetonitrile or the acetone.
机译:提供了一种聚合物包被环丙沙星-HCl包封的低分子量水溶性壳聚糖微小颗粒的多颗粒,其制备工艺简单,可长时间无毒释放药物,并可用于革兰氏阳性抗生素细菌和革兰氏阴性细菌。一种制备多聚体颗粒的方法,该方法是用环丙沙星包封的低分子量水溶性壳聚糖细小颗粒包被聚合物,该方法包括:将低分子量水溶性壳聚糖和环丙沙星混合并在乙醇存在下搅拌的步骤。溶剂;将混合物干燥并制备环丙沙星包封的低分子量水溶性壳聚糖微小颗粒的步骤;生产聚合物溶液的步骤;分散有环丙沙星的低分子量水溶性壳聚糖微小颗粒分散在聚合物溶液中的步骤。水溶性壳聚糖的分子量为1,000-50,000Da。聚合物溶液中使用的溶剂是乙腈或丙酮。

著录项

  • 公开/公告号KR101115501B1

    专利类型

  • 公开/公告日2012-02-27

    原文格式PDF

  • 申请/专利权人

    申请/专利号KR20070123412

  • 发明设计人 나재운;정특래;정영일;

    申请日2007-11-30

  • 分类号A61K9/16;A61K9/14;A61K31/495;

  • 国家 KR

  • 入库时间 2022-08-21 17:08:33

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