Page 146 - 《精细化工》2021年第1期
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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,
            银纳米粒可以有效抑制肿瘤细胞的生长,并且对不                                 5(10): 1098-1110.
                                                               [2]   ANTONY J J, SITHIKA M A, JOSEPH T A, et al. In vivo antitumor
            同肿瘤细胞系的抑制作用效果不一致。这可能由于                                 activity of biosynthesized silver nanoparticles using Ficus religiosa
            不同癌细胞对银纳米粒的敏感程度不同。在本实验                                 as a nanofactory in DAL induced  mice  model[J]. Colloids and
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            中桑叶银纳米粒对 MCF-7 有非常好的抑制效果,并                         [3]   CHAHAR V, SHARMA B, SHUKLA G, et al. Study of antimicrobial
            且优于文献报道的番荔枝叶提取物制备的银纳米粒                      [44]       activity of silver nanoparticles synthesized using green and chemical
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            (IC 50  51.3  mg/L)对 MCF-7 的抑制作用。相比                [4]   SUN Y G, YIN Y D, MAYERS B T, et al. Uniform silver nanowires
            VASANTH 等    [46] 利用辣木枝皮制备的银纳米粒(IC 50                  synthesis by reducing AgNO 3 with ethylene glycol in the presence of
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            增殖抑制作用,桑叶银纳米粒显示出较好的抗癌性                                 Journal of Physical Chemistry B, 2003, 107(34): 8898-8904.
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            能。本文制备的桑叶银纳米粒对 HepG2 的抑制效果
                                                                   monodisperse silver nanoparticles beneath vitamin E langmuir
            和 NAKKALA 等      [48] 用菖蒲提取物制备的银纳米粒                    monolayers[J]. Journal of  Physical Chemistry B, 2006, 110(13):
            (IC 50  29.5 mg/L)相当,而桑叶银纳米粒和菖蒲银                       6615-6620.
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            纳米粒都高于 SARATALE 等          [49] 用石榴叶制备的银               silver nanoparticles utilizing plant extracts[J]. Toxicological Research,
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            接结合 DNA 来干扰其复制           [35,50] 。因此,具有小粒径         [11]  YU L, SHANG F, CHEN  X L,  et al. The anti-biofilm effect of
            的银纳米粒可以进入癌细胞,影响癌细胞正常的结                                 silver-nanoparticle-decorated quercetin nanoparticles on a multi-drug
                                                                   resistant  Escherichia coli  strain isolated from  a dairy cow with
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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
                                                                   for biomedical applications[J]. International Journal of Electrochemical
            米粒;当 AgNO 3 为 5.0 mmol/L、反应温度为 35  ℃、                  Science, 2013, 8(3): 3483-3493.
            桑叶水提液与 AgNO 3 溶液体积比为 1∶5、桑叶水提                      [14]  SIEGEL R L, MILLER K D, JEMAL A. Cancer statistics, 2020[J].
                                                                   CAA Cancer Journal for Clinicians, 2020, 70(1): 7-30.
            物的 pH 为 11.0 及反应时间 6 h 时,合成的桑叶银                    [15]  DAS G, PATRA J K, BASVEGOWDA N, et al. Comparative study
            纳米粒为大小均一的球形,粒径较小,表面电荷较低。                               on antidiabetic, cytotoxicity, antioxidant and antibacterial properties
                                                                   of biosynthesized silver nanoparticles using outer peels of two
                (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.
                                                               [16]  KEDI P B E, MEVA F E, KOTSEDI L, et al. Eco-friendly synthesis,
            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].
                                                                   International Journal of Nanomedicine, 2018, 13: 8537-8548.
            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,
            乳腺癌细胞抑制效果显著。                                           et al. Mulberry leaf extract stimulates glucose uptake and GLUT4
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                (3)在本文所建立的绿色合成方法下,所制备                              Medicine, 2012, 40(1): 163-175.
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