Zhao Yang , Marjan Shahriari , Youfeng Liang , Bikash Karmakar , Attalla F. El-kott , Mohammed A. AlShehri , Sally Negm , Waleed Eltantawy
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Subsequently, towards the wastewater treatment, it demonstrated excellent potential in the reduction of water contaminant toxic organic dyes like methylene blue (MB), methyl orange (MO), and 4-nitrophenol (4-NP) following excellent kinetics, as monitored by UV–Vis spectrophotometer. The reaction followed a pseudo-first order kinetics. The robustness of the nanocatalyst was justified by reusability studies, and hot filtration test and the catalytic activity did not substantially decline over the course of seven cycles. Towards the assessment of biological activity of Au NPs/C. <em>longa</em> nanocomposite antioxidant capacity was evaluated first using the DPPH radical scavenging method. 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引用次数: 0
摘要
在环境修复方面,高效的异相催化剂能够消除有机污染物,或至少将其转化为有益的副产品,这一点至关重要。在这方面,我们设计并开发了一种基于金纳米粒子的绿色纳米复合材料,并在提取物上进行了模板化。通过傅立叶变换红外光谱(FT-IR)和紫外可见光谱(UV-Vis)对 Au NPs/C. 纳米材料进行了全面的表征,随后进行了 FE-SEM、EDX、TEM 和 XRD 分析。随后,在废水处理方面,纳米材料在还原亚甲基蓝(MB)、甲基橙(MO)和 4-硝基苯酚(4-NP)等水污染有毒有机染料方面表现出了卓越的潜力,并通过紫外-可见分光光度计进行了良好的动力学监测。反应遵循伪一阶动力学。可重复使用性研究和热过滤试验证明了纳米催化剂的稳健性,催化活性在七个循环过程中没有大幅下降。为了评估 Au NPs/C. 纳米复合材料的生物活性,首先用 DPPH 自由基清除法评估了其抗氧化能力。此外,还通过 MTT 比色法进行体外研究,扩展了对一些标准肺癌细胞系(即 NCI-H661、NCI-H1975、NCI-H1573 和 NCI-H1563)的抗肺癌特性的研究。-由于改性金氧化物具有产生活性氧(ROS)的特殊能力,因此被认为具有潜在的生物活性。
Biosynthesis of gold nanoparticles mediated by Curcuma longa extract: Evaluation of its catalytic activity for the degradation of environmental pollutants and study of anti-lung adenocarcinoma effects
It is essential to recognize efficient heterogeneous catalysts for environmental remediation that can eliminate organic contaminants or transform them into beneficial byproducts. Herein, we have designed and developed a gold nanoparticle based green nanocomposite material templated over the Curcuma longa extract. The Au NPs/C. longa nanomaterial was thoroughly characterized by FT-IR and UV–Vis spectroscopy followed by FE-SEM, EDX, TEM and XRD analysis. Subsequently, towards the wastewater treatment, it demonstrated excellent potential in the reduction of water contaminant toxic organic dyes like methylene blue (MB), methyl orange (MO), and 4-nitrophenol (4-NP) following excellent kinetics, as monitored by UV–Vis spectrophotometer. The reaction followed a pseudo-first order kinetics. The robustness of the nanocatalyst was justified by reusability studies, and hot filtration test and the catalytic activity did not substantially decline over the course of seven cycles. Towards the assessment of biological activity of Au NPs/C. longa nanocomposite antioxidant capacity was evaluated first using the DPPH radical scavenging method. Further, the study was extended in the investigation of anti-lung cancer properties against a number of standard lung cancer cell lines, viz., NCI-H661, NCI-H1975, NCI-H1573, and NCI-H1563 following MTT colorimetric in vitro studies. Curcuma longa-modified Au NPs are thought to have potential biological activities because of their exceptional capacity to produce reactive oxygen species (ROS).
期刊介绍:
In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research.
Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science.
With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.