相关实验视频

Updated: Jul 6, 2026

Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties

Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties

Published on: May 10, 2018

稀土元素纳米颗粒的生物合成和抗菌性质使用Moringa oleifera

Nader Anis¹, Amira A Gamal², Nada Emam¹

¹Reactors Materials Department, Nuclear Materials Authority Cairo Egypt Naderanis@science.zu.edu.eg.

|October 3, 2025

概括

研究人员开发了一种混合稀土氧化物纳米颗粒的绿色合成方法,使用Moringa oleifera叶子提取物. 这些新型纳米颗粒显示出针对各种细菌和真菌的显著抗菌活性.

科学领域:

绿色化学和纳米技术
生物材料和纳米医学

背景情况:

开发用于纳米粒子合成的可持续方法至关重要.
稀土元素及其氧化物具有多种应用,但它们的生产可能是环境密集的.
生物衍生纳米颗粒提供了一个有前途的环保替代品.

研究的目的:

通过绿色生物方法合成混合稀土氧化物纳米粒子 (多REONP).
描述合成的多REONP,并评估它们的抗微生物特性.
在纳米粒子合成中探索Moringa oleifera叶片提取物的潜力.

主要方法:

绿色合成多REONP使用Moringa oleifera叶提取物作为生物减少和封闭剂.
使用紫外线光谱,FTIR,XRD,TEM,DLS,SEM和EDS进行表征.
通过阿加井扩散试验评估抗微生物活性,对抗阳性,阴性细菌和真菌菌株.

主要成果:

成功合成了平均直径为29.36nm的纳米晶体多REONP.
证实了CeO2的形成以及La,Ce和Nd元素的存在.
对黄金葡萄球菌,大麦芽菌,大肠杆菌,白菌和黑色菌观察到显著的抗菌活性,对黄金菌的疗效最高.

结论:

莫林加橄树叶提取物是合成多重REONP的有效绿色剂.
合成的多REONP表现出强大的广谱抗菌活性.
这项研究提出了一种可持续和有效的方法来生产功能性纳米材料.

更多相关视频

Synthesis of Functionalized Magnetic Nanoparticles, Their Conjugation with the Siderophore Feroxamine and its Evaluation for Bacteria Detection

Synthesis of Functionalized Magnetic Nanoparticles, Their Conjugation with the Siderophore Feroxamine and its Evaluation for Bacteria Detection

Published on: June 16, 2020

Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils

Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils

Published on: April 7, 2023

相关概念视频

Microbial Corrosion

Microbial Corrosion

Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...