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叶酸修饰的多壁碳纳米管递药体系的制备及生物活性研究 被引量:2

Preparation of Folate-Decorated Multi-Walled Carbon Nanotubes and Study on Its Biological Activity as Drug Carrier
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摘要 在多壁碳纳米管(MWCNTs)表面引入酸性基团进行酸化改性,用均相合成法合成壳聚糖-叶酸(CHI-FA)偶联物,并制备出壳聚糖-叶酸修饰的多壁碳纳米管(MWCNTs-CHI-FA)复合纳米材料。利用Zeta电位、红外光谱、紫外吸收光谱和透射电镜对其进行了表征。以抗肿瘤药物阿霉素(DOX)为模型药物、MWCNTs-CHI-FA为药物载体,对该递药体系的靶向给药性能进行了研究。体外细胞实验证实:所合成的多壁碳纳米管递药体系具有良好的药物靶向输送效果,对叶酸受体表达较高的HeLa肿瘤细胞具有明显的体外细胞抑制活性。 Multi-walled carbon nanotubes(MWCNTs)acidified by mixed acid and functionalized by folate(FA)conjugated chitosan(CHI)as drug carrier were characterized by Zeta potential,IR,UV and TEM.Doxorubicin(DOX),as a model of anticancer drug,was encapsulated into(or onto)the functionalized carbon nanotubes.The resulting DOX-MWCNTs-CHI-FA had good targeting drug delivery ability and exhibited good inhibition activity against the folate receptor[FR(+)]HeLa tumor cells in vitro.
出处 《化学与生物工程》 CAS 2014年第5期40-43,56,共5页 Chemistry & Bioengineering
关键词 多壁碳纳米管 叶酸 壳聚糖 靶向递药 阿霉素 multi-walled carbon nanotubes(MWCNTs) folate(FA) chitosan targeting drug delivery doxorubicin(DOX)
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参考文献8

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