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FeO/SiO/TiO/CeVO纳米复合材料的制备：对有机污染物、细菌环境及抗癌细胞新潜在治疗候选物的光催化效应研究

Preparation of FeO/SiO/TiO/CeVO Nanocomposites: Investigation of Photocatalytic Effects on Organic Pollutants, Bacterial Environments, and New Potential Therapeutic Candidate Against Cancer Cells.

作者信息

Marsooli Mohammad Amin, Rahimi-Nasrabadi Mahdi, Fasihi-Ramandi Mahdi, Adib Kourosh, Eghbali-Arani Mohammad, Ahmadi Farhad, Sohouli Esmail, Sobhani Nasab Ali, Mirhosseini Seyed Ali, Gangali Mohamad Reza, Ehrlich Hermann, Joseph Yvonne

机构信息

Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.

Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran.

出版信息

Front Pharmacol. 2020 Mar 4;11:192. doi: 10.3389/fphar.2020.00192. eCollection 2020.

DOI:10.3389/fphar.2020.00192
PMID:32194419
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7064640/
Abstract

The new nanocomposite with various molar ratios along with magnetic properties was fabricated precipitation (assisted by ultrasonic) procedure. The photocatalytic effects of methylene blue (∼90% degradation for optimized sample in 100 min) for finding the optimized sample performed under visible light irradiation. Moreover, the photo-antibacterial impacts of bacteria culture environments were found with an optimized sample that had effective destruction of bacteria in comparison to control group. The cytotoxicity properties of panc1 cells and magnetic behaviors of the obtained nanomaterials were evaluated and its IC50 was about 500 mg/L. As an initial step, the structural, morphological and magnetic characteristics of the fabricated nanocomposites were evaluated by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) and MAP, UV-visible diffuse reflectance spectroscopy (DRS), and vibrating sample magnetometry (VSM) approaches. Based on SEM results, the size of nanoparticles in fabricated nanocomposite was nearly 50-70 nm for FeO/SiO/TiO and 80-100 nm for FeO/SiO/TiO/CeVO. XRD results showed that desired nanocomposites were truly synthesized without any impurities.

摘要

通过（超声辅助）沉淀法制备了具有不同摩尔比和磁性的新型纳米复合材料。在可见光照射下，通过亚甲基蓝的光催化效果（优化后的样品在100分钟内降解率约为90%）来寻找优化后的样品。此外，在细菌培养环境中，发现优化后的样品具有光抗菌作用，与对照组相比，该样品能有效破坏细菌。评估了panc1细胞的细胞毒性特性以及所得纳米材料的磁性行为，其半数抑制浓度（IC50）约为500 mg/L。作为第一步，通过傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、X射线衍射（XRD）、能量色散X射线（EDX）和能谱分析（MAP）、紫外可见漫反射光谱（DRS）以及振动样品磁强计（VSM）方法对制备的纳米复合材料的结构、形态和磁性特征进行了评估。基于扫描电子显微镜结果，对于FeO/SiO/TiO，制备的纳米复合材料中纳米颗粒的尺寸约为50 - 70 nm，对于FeO/SiO/TiO/CeVO则为80 - 100 nm。X射线衍射结果表明，所需的纳米复合材料已真正合成，无任何杂质。

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