The invention is a kind of solid lipid nanoparticles (solid lipid nanoparticles, SLN) (including nanostructured lipid carriers, nanostructured lipid carriers, NLC) a new preparation method, which solves the problem of solid lipid nanoparticles (NLC) to the aggregation and condensation of unstable problem. The preparation process includes the following steps: A, will be used to form solid lipid nanoparticles (NLC) lipids, lipophilic substances (drugs) can be dissolved in water miscible organic solvent (t-butanol) to form the oil phase (O), or a hydrophilic substance (including drugs) with surface activity can agent solubilized in water miscible organic solvent O; B, the water soluble substances dissolved in water to form aqueous phase (W); C, O according to the volume ratio of oil phase into appropriate stirring conditions of aqueous W, solid dispersion of nanoparticles; D, the dispersion of freeze drying to remove the solvent, obtained by freeze-drying product; e, will get the freeze-dried product water, to obtain the solid lipid nanoparticles (including NLC). The process is simple and easy to implement.
【技术实现步骤摘要】
本专利技术涉及生物医药
,确切地说它是一种固体脂质纳米粒(包括NLC)药物载体制备新方法。
技术介绍
固体脂质纳米粒(包括NLC)是由脂类分子层形成的纳米粒子。固体脂质纳米粒 (包括NLC)根据其结构的不同可以分为固体脂质纳米粒(solid lipid nanoparticles, SLN)、纳米结构脂质载体(nanostructured lipid carriers, NLC)两类。前者由室温下呈固态脂质材料制备而成,后者则由前者在制备时加入了部分液态脂质成分得到。固体脂脂纳米粒由1990年开始发展用作药物载体,随后不久作为化妆品进入市场。固体脂质纳米粒 (包括NLC)作为物质载体,尤其是药物载体,有着巨大的应用价值,目前人们对固体脂质纳米粒(包括NLC)正进行系统而广泛的研究。经过了二十多年的探索,科研人员已经提出了许多很有价值的固体脂质纳米粒 (包括NLC)制备方法。(1)热融一分散法即将热的0/W微乳分散于冷水中,Marengo 等将Epikuron 200和热水加入到融化的硬脂酸中,制备温度(70士幻°〇。将助乳化剂牛胆酸钠盐加入到上述热混合物中 ...
【技术保护点】
1.固体脂质纳米粒(包括NLC)制备新方法,其特征在于:a、质纳米粒(包括NLC)的脂类物质和待包封的亲脂性物质溶于有机溶剂形成油相(O),将亲水性物质溶于水形成水相(W),将油相按合适体积比注射入搅拌下的水相(W)得到固体脂质纳米粒(包括NLC)分散液;b、到的固体脂质纳米粒(包括NLC)分散液冷冻干燥除去溶媒得到冻干产物;c、到的冻干产物水化得到固体脂质纳米粒(包括NLC)。
【技术特征摘要】
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