Ecofriendly Biosynthesis of Zinc Oxide and Magnesium Oxide Particles from Medicinal Plant Pisonia grandis R.Br. Leaf Extract and Their Antimicrobial Activity

2018 ◽  
Vol 9 (1) ◽  
pp. 141-154 ◽  
Author(s):  
Suresh Joghee ◽  
Pradheesh Ganeshan ◽  
Alexramani Vincent ◽  
Sun Ig Hong
Keyword(s):  
Antimicrobial Activity ◽  
Zinc Oxide ◽  
Medicinal Plant ◽  
Magnesium Oxide ◽  
Leaf Extract ◽  
Oxide Particles ◽  
Pisonia Grandis

scholarly journals Synthesis of Zinc Oxide Nanoparticles Using Leaf Extract of Lippia adoensis (Koseret) and Evaluation of Its Antibacterial Activity

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Meron Girma Demissie ◽  
Fedlu Kedir Sabir ◽  
Gemechu Deressa Edossa ◽  
Bedasa Abdisa Gonfa
Keyword(s):  
Electron Microscopy ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Leaf Extract ◽  
Diffusion Method ◽  
Oxide Nanoparticles ◽  
Lippia Adoensis

The synthesis of metal oxide nanoparticles with the use of medicinal plant extract is a promising alternative to the conventional chemical method. This work aimed to synthesize zinc oxide nanoparticles using a green approach from indigenous “Koseret” Lippia adoensis leaf extract which is an endemic medicinal plant and cultivated in home gardens of different regions of Ethiopia. The biosynthesized zinc oxide nanoparticles were characterized using thermogravimetric analysis, X-ray diffraction, scanning electron microscopy-energy dispersive spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and Fourier transform infrared spectroscopy. Furthermore, this study also evaluated the antibacterial activity of the synthesized ZnO nanoparticles against clinical and standard strains of Escherichia coli, Klebsiella pneumonia, Staphylococcus aureus, and Enterococcus faecalis by the disc diffusion method. According to the result of this study, ZnO nanoparticles synthesized using Lippia adoensis leaf extract showed promising result against both Gram-positive and Gram-negative bacterial strains with a maximum inhibition zone of 14 mm and 12 mm, respectively, using uncalcinated form of the synthesized ZnO nanoparticles.

Antimicrobial activity of zinc oxide particles on five micro-organisms of the Challenge Tests related to their physicochemical properties

2014 ◽  
Vol 460 (1-2) ◽  
pp. 92-100 ◽  
Author(s):  
Julia Pasquet ◽  
Yves Chevalier ◽  
Emmanuelle Couval ◽  
Dominique Bouvier ◽  
Gaëlle Noizet ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Zinc Oxide ◽  
Physicochemical Properties ◽  
Challenge Tests ◽  
Oxide Particles ◽  
Zinc Oxide Particles ◽  
Micro Organisms

scholarly journals Extraction of the Metabolites from Medicinal plant Euphorbia leaf

2021 ◽  
Vol 37 (5) ◽  
pp. 1257-1261
Author(s):  
Uday M. Muddapur ◽  
Aejaz A. Khan ◽  
Amal Bahafi ◽  
S. M. Shakeel Iqubal ◽  
Abdul Rahman Ikbal ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plant ◽  
Ethyl Acetate ◽  
Leaf Extract ◽  
Research Work ◽  
Leaf Extracts ◽  
Different Types ◽  
Phytochemical Contents ◽  
Ethyl Acetate Extracts

The antimicrobial, phytochemical contents of extracts obtained from the leaf extract of mature Euphorbia pilulifera (E. pilulifera) were examined in this research work. Using ethyl acetate extracts of the leaves of Euphorbia pilulifera, phytochemical metabolites were studied. Further using chromatography, different components were separated and its antimicrobial activity was studied. Different types of bacterial organisms were used for evaluating the antimicrobial activity. The results indicated that leaf extracts are more sensitive towards organisms. Thus the presence of phytochemicals in the leaf extract can be used for the treatment of different diseases.

Green Synthesis of Silver Nanoparticles by Allamanda cathartica L. Leaf Extract and Evaluation for Antimicrobial Activity

2013 ◽  
Vol 6 (4) ◽  
pp. 2260-2268
Author(s):  
M. Linga Rao ◽  
Bhumi G ◽  
Savithramma N
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Fusarium Species ◽  
Inhibition Zone ◽  
Fungal Species ◽  
Green Technology ◽  
Metallic Silver ◽  
Synthesis Of Nanoparticles ◽  
Aqueous Leaf Extract

Silver nanoparticles (SNPs) exhibit tremendous applications in medicine as antimicrobial agent.  The use of different parts of plants for the synthesis of nanoparticles is considered as a green technology as it does not involve any harmful chemicals.  In the present study, we report a rapid biosynthesis of silver nanoparticles from aqueous leaf extract of medicinal plant Allamanda cathartica.  The active phytochemicals present in the plant were responsible for the quick reduction of silver ion to metallic silver nanoparticles. The reduced silver nanoparticles were characterized by using UV-Vis spectrophotometry, Scanning Electron Microscope (SEM), Energy Dispersive Analysis of X-ray (EDAX) and Atomic Force Microscopy (AFM).  The spherical shaped silver nanoparticles were observed and it was found to 19-40 nm range of size.  These phytosynthesized SNPs were tested for their antimicrobial activity and it analyzed by measuring the inhibitory zone. A. cathartica aqueous leaf extract of SNPs showed highest toxicity to Pseudomonas followed by Klebsiella, Bacillus and E. coli and lowest toxicity towards Proteus. In fungal species, highest inhibition zone was noted against Rhizopus followed by Curvularia, Aspergillus flavus and Aspergillus niger and minimum inhibition zone was observed against Fusarium species.  These results suggest a promising potential of Indian plant-based green chemistry for production of SNPs for biomedical and nanotechnology applications.

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