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利用树皮提取物绿色合成银纳米颗粒用于通过光催化高效去除亚甲基蓝（MB）降解、具有抗菌活性以及抗癌活性

Green Synthesis of Silver Nanoparticles Using Bark Extract for Efficient Removal of Methylene Blue (MB) Degradation via Photocatalysis with Antimicrobial Activity and for Anticancer Activity.

作者信息

Yahya Tahir Muhammad, Ahmad Awais, A Alothman Asma, Mushab Mohammed Sheikh Saleh, Ali Shafaqat

机构信息

Department of Environmental Science and Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan.

Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, Cordoba E14014, Spain.

出版信息

Bioinorg Chem Appl. 2022 Jun 30;2022:7268273. doi: 10.1155/2022/7268273. eCollection 2022.

DOI:10.1155/2022/7268273
PMID:35813489
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9262567/
Abstract

The green synthesis method was used to effectively fabricate Ag-NPs by using bark extract. The structural, morphological, elemental composition, and optical properties of as-synthesized Ag-NPs were characterized by powder X-ray diffraction (P-XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDAX), transmission electron microscopy (TEM), and UV-Vis spectroscopy. Their photocatalytic efficiency as a photocatalyst was examined by degradation of methylene blue (MB) dye under direct sunlight irradiation. After 120 minutes of sunlight irradiation, Ag-NPs show photocatalytic degradation efficiency (DE percent) of 92%. The hydroxyl and superoxide radicals were found to be responsible for biodegradation. To the best of our acquaintance, this is the first research to use Ag-NPs as a photocatalyst for the efficient degradation of MB dye and its antimicrobial activity by using bark extract. The cytotoxic viability against SK-MEL cell line with a median inhibitory concentration (IC) of 45 L/mg proved its potent anticancer property. Based on the findings, the study revealed the significance of as-synthesized green Ag-NPs over other physically/chemically prepared Ag-NPs.

摘要

采用绿色合成法，利用树皮提取物有效制备了银纳米颗粒。通过粉末X射线衍射（P-XRD）、傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、能量色散X射线光谱（EDAX）、透射电子显微镜（TEM）和紫外可见光谱对合成的银纳米颗粒的结构、形态、元素组成和光学性质进行了表征。通过在阳光直射下亚甲基蓝（MB）染料的降解来考察其作为光催化剂的光催化效率。在阳光照射120分钟后，银纳米颗粒的光催化降解效率（DE百分比）为92%。发现羟基和超氧自由基是生物降解的原因。据我们所知，这是首次利用树皮提取物将银纳米颗粒用作光催化剂高效降解MB染料及其抗菌活性的研究。对SK-MEL细胞系的细胞毒性活力，其半数抑制浓度（IC）为45 L/mg，证明了其强大的抗癌特性。基于这些发现，该研究揭示了合成的绿色银纳米颗粒相对于其他物理/化学制备的银纳米颗粒的重要性。

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