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由 合成的金纳米颗粒及其在 A549 肺癌细胞中的抗癌活性。

Gold nano particles synthesized from and anticancer activity in A549 lung cancer cells.

机构信息

a Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Kunming Medical University , Kunming , Yunnan , P. R. China.

b School of Pharmacy, North Sichuan Medical College , Nanchong , Sichuan , P. R. China.

出版信息

Artif Cells Nanomed Biotechnol. 2019 Dec;47(1):3101-3109. doi: 10.1080/21691401.2019.1645152.

Abstract

Nanotechnology is creating a bang in each and every field of life science. Scientists are mounting their interest of research towards gold nanoparticles as they are capable with bigger and advanced properties.Traditionally nanoparticles have been manufactured by various chemical and physical methods but have negative impact on the environment and are also highly toxic. Synthesis of nanoparticles by using plant extracts is substituting the conventional methods and it is eco-friendly too. In the current study, we prepared gold nanoparticles (AuNPs) from Magnolia officinalis, which is identified as an eco-friendly and less toxic method. Incorporation of AuNPs was renowned by UV-absorbance and it shows peak values. Nanoparticle sizes are recognized by dynamic light scattering scrutiny and it shows a value of 128 nm. Besides, high resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray analysis (EDX) and atomic force microscopy (AFM) incorrigibly define the shape of the AuNPs which are present in the complex materials. Fourier-transform infrared spectroscopy (FTIR) findings display that the active molecules are positioned in the plane of the AuNPs. Similarly, anticancer efficacy of AuNPs have been assessed in A549 cells. our study show that AuNPs effectively provoke cytotoxicity, and apoptosis by inflecting apoptotic gene expressions in A549 cells.

摘要

纳米技术正在生命科学的各个领域引发一场革命。由于金纳米粒子具有更大和更先进的特性,科学家们对其研究兴趣日益浓厚。传统上,纳米粒子是通过各种化学和物理方法制造的,但对环境有负面影响,而且毒性也很高。使用植物提取物合成纳米粒子正在替代传统方法,而且也更加环保。在目前的研究中,我们从木兰科植物中制备了金纳米粒子(AuNPs),这被认为是一种环保且毒性较低的方法。AuNPs 的掺入是通过紫外吸收来识别的,它显示出峰值。纳米粒子的尺寸是通过动态光散射分析来识别的,显示值为 128nm。此外,高分辨率透射电子显微镜(HR-TEM)、能量色散 X 射线分析(EDX)和原子力显微镜(AFM)无可置疑地定义了存在于复杂材料中的 AuNPs 的形状。傅里叶变换红外光谱(FTIR)的结果表明,活性分子位于 AuNPs 的平面上。同样,我们评估了 AuNPs 在 A549 细胞中的抗癌功效。我们的研究表明,AuNPs 通过在 A549 细胞中诱导凋亡基因表达,有效地引起细胞毒性和细胞凋亡。

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