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菩提树水叶提取物合成纳米颗粒的杀幼虫和抗菌活性。

Larvicidal and antibacterial activity of aqueous leaf extract of Peepal () synthesized nanoparticles.

作者信息

Soni Namita, Dhiman Ramesh C

机构信息

Environmental Epidemiology Division, ICMR-National Institute of Malaria Research, New Delhi, India 110077.

出版信息

Parasite Epidemiol Control. 2020 Jul 20;11:e00166. doi: 10.1016/j.parepi.2020.e00166. eCollection 2020 Nov.

DOI:10.1016/j.parepi.2020.e00166
PMID:32885057
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7452144/
Abstract

In this study, the zinc oxide nanoparticles (ZnO NPs) and titanium dioxide nanoparticles (TiO NPs) were synthesized using the aqueous leaf extract of (Peepal tree). The synthesized nanoparticles were tested as larvicides against the larvae of Further, the synthesized nanoparticles were tested as antibacterial agents against the (gram negative) and (gram positive) bacteria. The synthesized nanoparticles were characterized with UV-visible spectroscopy, X-rays powder diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX). The larvicidal mortality was observed after 24 h and 48 h by probit analysis. The antibacterial activity was evaluated using the well diffusion method. The synthesized nanoparticles were irregular shape and varied size. The larvae of were found highly susceptible against the ZnO NPs than the TiO NPs and aqueous leaves extract. The highest mortality was observed in synthesized ZnO NPs against first to third instars of (LC 50, 75, and 5 ppm) and 100% mortality in fourth instars of . The higher zone of inhibition was occurred against the . This report of present investigation revealed that the rapid biological synthesis of ZnO NPs and TiO NPs using aqueous leaf extract of would be effective potential larvicides for mosquito control as well as antimicrobial agents with eco-friendly approach.

摘要

在本研究中,使用菩提树的水提叶提取物合成了氧化锌纳米颗粒(ZnO NPs)和二氧化钛纳米颗粒(TiO NPs)。对合成的纳米颗粒进行了测试,以评估其对致倦库蚊幼虫的杀幼虫活性。此外,还测试了合成的纳米颗粒对大肠杆菌(革兰氏阴性菌)和金黄色葡萄球菌(革兰氏阳性菌)的抗菌活性。通过紫外可见光谱、X射线粉末衍射(XRD)、透射电子显微镜(TEM)、带有能量色散X射线光谱的扫描电子显微镜(SEM-EDX)对合成的纳米颗粒进行了表征。通过概率分析观察24小时和48小时后的杀幼虫死亡率。使用平板扩散法评估抗菌活性。合成的纳米颗粒形状不规则且尺寸各异。发现致倦库蚊幼虫对ZnO NPs的敏感性高于TiO NPs和水提叶提取物。在合成的ZnO NPs对致倦库蚊一至三龄幼虫的测试中观察到最高死亡率(LC50、75和5 ppm),在四龄幼虫测试中死亡率达100%。对大肠杆菌产生了更高的抑菌圈。本研究报告表明,利用菩提树水提叶提取物快速生物合成ZnO NPs和TiO NPs,将是控制蚊虫的有效潜在杀幼虫剂,也是采用生态友好方法的抗菌剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/3bbae88bfa59/gr8.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/828617d69e6c/gr1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/f6a1f43874b9/gr3.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/71eb558357b1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/3bbae88bfa59/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/e6d1492f3ce9/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/828617d69e6c/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/70a8078bf13b/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/f6a1f43874b9/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/ca837fa5654d/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/9d1a3dadf569/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/bfad1ec6d0fd/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/71eb558357b1/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f082/7452144/3bbae88bfa59/gr8.jpg

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