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·136· 精细化工 FINE CHEMICALS 第 38 卷
从图 6 可以发现,相对于桑叶水提物,桑叶银 的桑叶银纳米粒有良好的物理化学性质和较强的抗
纳米粒对 Hela、HepG2 以及 MCF-7 的增殖抑制活 菌抗癌生物活性,具有潜在的医药应用价值;然而在
性明显提高,且在 0~200 mg/L 范围内存在量效关 用于临床前,其生物安全性仍然需要进一步评价考察。
系。结果显示,桑叶银纳米粒对 3 种癌细胞的抑制
参考文献:
强度依次是:MCF-7(IC 50 18.65 mg/L)> HepG2(IC 50
[1] VIJAYRAGHAVAN K, NALINI S P K. Biotemplates in the green
26.98 mg/L)> Hela(IC 50 60.63 mg/L)。因此,桑叶 synthesis of silver nanoparticles[J]. Biotechnology Journal, 2010,
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(1)通过绿色合成方法,以药用植物白桑干燥 [13] KHALIL K A, FOUAD H, ELSARNAGAWY T, et al. Preparation
叶的水提物为还原剂和稳定剂成功制备了桑叶银纳 and characterization of electrospun PLGA/silver composite nanofibers
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(2)相比桑叶水提物,绿色合成的桑叶银纳米 varieties of Ipomoea batatas (L.) Lam[J]. International Journal of
粒对多种病原微生物有显著的抑制作用,尤其是对 Nanomedicine, 2019, 14: 4741-4754.
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革兰阴性菌(大肠杆菌和铜绿假单胞杆菌)的抑制 characterization, in vitro and in vivo anti-inflammatory activity of
用很强;同时,桑叶银纳米粒对宫颈癌、肝癌细胞 silver nanoparticle-mediated Selaginella Myosurus aqueous extract[J].
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及乳腺癌细胞具有良好的增殖抑制作用,尤其是对 [17] NAOWABOOT J, PANNANGPETCH P, KUKONGVIRIYAPAN V,
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