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Synthesis and characterization of copolymeric micelles loaded with Taxol as potential drug delivery systems for cancer treatment

机译:用紫杉醇作为癌症治疗潜在药物递送系统的共聚物胶束的合成与表征

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Taxol (Paclitaxel) is a very potent anticancer drug used in chemotherapy treatments. Due to its hydrophobic nature, toxic solubilizing agents are used to administer the drug via intravenously. However, this systemic administration is associated with toxic side effects and drug limited efficacy. An alternative to these problems are polymeric micelles. The effectiveness of this drug delivery system is related to its size, modification of pharmacokinetics, drug delivery control and toxicity reduction. In this study, micelles based on methoxy Poly(ethylene glycol)-block-Poly(ε-caprolactone) (mPEG-b-PCL) copolymer loaded with Taxol were synthesized thorough an uncommon method namely powder formulation, using tert-butanol as co-solvent, to our knowledge no reported previously for these micells. Taxol was conjugated to the hydrophobic block of mPEG-b-PCL copolymer. Characterization of this system was done by means of Fourier Transform Infrared Spectroscopy (FT-IR) and Field Emission Scanning Electron Microscopy (FESEM), observing good results as compared to previous reports.
机译:紫杉醇(紫杉醇)是一种在化疗治疗中使用的非常有效的抗癌药物。由于其疏水性质,毒性增溶剂用于静脉内通过施用药物。然而,这种全身施用与毒性副作用和药物有限的功效有关。这些问题的替代方案是聚合物胶束。该药物递送系统的有效性与其大小,药代动力学的修饰,药物递送控制和毒性减少有关。在本研究中,基于甲氧基聚(乙二醇) - 伯烷 - 聚(ε-己内酯)(MPEG-B-PCL)共聚物的胶束彻底透露了一种罕见的方法,即粉末制剂,使用叔丁醇作为共同溶剂,我们的知识没有针对这些胶束报告。紫杉醇与MPEG-B-PCL共聚物的疏水嵌段缀合。通过傅里叶变换红外光谱(FT-IR)和场发射扫描电子显微镜(FESEM)来完成该系统的表征,与先前的报告相比,观察良好的效果。

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