长春花生物碱载药纳米粒的制备及评价

China Journal of Traditional Chinese Medicine and Pharmacy(2018)

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Abstract
目的:制备基于L-色氨酸单体的纳米聚合物,以长春花生物碱为模型药物制备载药纳米粒,评价其药物载体性能.方法:考察并采用均匀设计法优化N-丙烯酰基-L-色氨酸纳米聚合物的制备方法,并评价其对L-929细胞生长增殖的影响;分别制备长春碱、长春新碱、长春瑞滨载药纳米粒,考察其在磷酸缓冲液(PBS,pH=7.4)的释药行为.结果:沉淀聚合法制备的L-色氨酸纳米聚合物(169.3nm,PDI=0.358)对L-929细胞生长增殖无影响;对长春碱、长春新碱、长春瑞滨载药性能良好,载药量分别为8.55%、7.04%、6.72%;在PBS中,3种药物均以扩散方式从载体中缓慢、完全释放,无明显突释.结论:L-色氨酸纳米聚合物生物相容性良好,可能通过π-π作用包载长春花生物碱,在生理环境下缓释药物,是潜在的长春花生物碱药物载体.
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Key words
Poly (N-acryloyl-L-tryptophan) nanopolymers,Vinca alkaloid drugs,Parameter optimization,Sustainedrelease,Biocompatibility
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