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    • 10. 发明申请
    • APPLICATION OF NANOPARTICLES BASED ON HYDROPHILIC POLYMERS AS PHARMACEUTICAL FORMS
    • 基于水解聚合物作为药物形态的纳米颗粒的应用
    • WO1998004244A1
    • 1998-02-05
    • PCT/ES1996000186
    • 1996-10-22
    • UNIVERSIDADE DE SANTIAGO DE COMPOSTELAALONSO FERNANDEZ, María JoséCALVO SALVE, PilarREMUÑAN LOPES, CarmenVILA JATO, José Luis
    • UNIVERSIDADE DE SANTIAGO DE COMPOSTELA
    • A61K09/51
    • A61K9/5161
    • Application of nanoparticles based on hydrophilic polymers as, pharmaceutical forms for the administration of active macromolecules. The nanoparticles (having a nanometric size and a hydrophilic character), also called nanospheres or latex, are colloidal systems comprised of the combination of hydrophilic polymers and an active ingredient having a high molecular weight (active macromolecule, molecular weight higher than 1000 daltons). The hydrophilic polymers are the chitosane (an aminopolysaccharide) or its derivatives and the polyoxyethylene or its derivatives. The association of the active macromolecule to said nanoparticles takes place in an aqueous phase without having to use organic solvents or auxiliary toxic substances. The active ingredient charge capacity of the nanoparticles is extremely high and additionally said charge is released in a controlled and time extended way. Additionally, said nanoparticles have a positive surface electric charge which the intensity may vary in relation to its composition.
    • 基于亲水性聚合物的纳米颗粒的应用,作为用于施用活性大分子的药物形式。 纳米颗粒(具有纳米尺寸和亲水特性)也称为纳米球或胶乳,是由亲水聚合物和具有高分子量(活性大分子,分子量高于1000道尔顿)的活性成分的组合组成的胶体体系。 亲水性聚合物是二甲硅烷(氨基多糖)或其衍生物和聚氧乙烯或其衍生物。 活性大分子与所述纳米颗粒的结合在水相中进行,而不必使用有机溶剂或辅助有毒物质。 纳米颗粒的活性成分电荷容量非常高,另外所述电荷以受控和时间延长的方式释放。 另外,所述纳米颗粒具有正的表面电荷,强度可以相对于其组成而变化。