scholarly journals Evaluation of Antibacterial and Antioxidant Activities of Biosynthesized Zinc oxide Nanoparticles using Aqueous Extract of Eriobotrya Japonica Seeds

2020 ◽  
Vol 28 (5) ◽  
pp. 21-32
Author(s):  
Masoumeh Shabaani ◽  
Somayeh Rahaiee ◽  
Mahboobeh Zare ◽  
◽  
◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Aqueous Extract ◽  
Zinc Oxide Nanoparticles ◽  
Antioxidant Activities ◽  
Eriobotrya Japonica ◽  
Oxide Nanoparticles

Biosynthesis of Zinc Oxide Nanoparticles Using Pongamia pinnata Plant Leaves Extract

2019 ◽  
pp. 43-46
Author(s):  
Sneha Sawade ◽  
Pramod Kulkarni
Keyword(s):  
Zinc Oxide ◽  
Aqueous Extract ◽  
Zinc Oxide Nanoparticles ◽  
Pongamia Pinnata ◽  
Oxide Nanoparticles ◽  
Capping Agent ◽  
Plant Leaves ◽  
X Ray Diffraction ◽  
X Ray ◽  
Average Size

We reported a simple, green and eco-friendly approach for the synthesis of zinc oxide nanoparticles using aqueous extract of Pongamia pinnata plant leaves acts as reducing agent as well as capping agent. Biosynthesized zinc oxide nanoparticles were characterized by FTIR, X-ray diffraction and field emission scanning electron microscopy. The results suggested that the zinc oxide nanoparticles synthesized by aqueous extract of Pongamia pinnata plant leaves with high purity, mostly spherical in shape with an average size of 23.5 nm.

Synthesis of zinc oxide nanoparticles (ZnONPs) by aqueous extract of Amaranthus caudatus and evaluation of their toxicity and antimicrobial activity

2017 ◽  
Vol 209 ◽  
pp. 295-298 ◽  
Author(s):  
Subhaschandrabose Jeyabharathi ◽  
Kalimuthu Kalishwaralal ◽  
Krishnan Sundar ◽  
Azhaguchamy Muthukumaran
Keyword(s):  
Antimicrobial Activity ◽  
Zinc Oxide ◽  
Aqueous Extract ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Amaranthus Caudatus

Sunflower Assisted Bio-derived ZnO-NPs as an Efficient Nanocatalyst for Synthesis of Novel Quinazolines with Highly Antioxidant Activities

2021 ◽  
Author(s):  
Balaji GL ◽  
S. Mahesh ◽  
Boya Palajonnala Narasaiah ◽  
Sadegh Rostamnia ◽  
Harihara Padhy ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Antioxidant Activities ◽  
Present Report ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
Green Method ◽  
Vis Spectroscopy

Abstract The present report an environmental benign route for the fabrication of Zinc Oxide nanoparticles (ZnO-NPs) using sunflower leaf aqueous extract at room temperature. This was an green method is a rapid biogenic and offers few advantages over the chemical and physical procedures, as it is an easy and fast, eco-friendly and does not involve any costly chemicals as well as hazardous chemicals, harmful solvent. The synthesized ZnO-NPs were characterized using different technique such as UV-Visible spectroscopy. The formation of ZnO-NPs was confirmed by Surface Plasmon Resonance (SRP) at 344 nm using UV-Vis spectroscopy. The leaf extract act as a source of phyto-chemicals and are the primarily responsible for the reduction and then formation of stable Zinc Oxide nanoparticles by the characteristic functional groups of extract and synthesized ZnO-NPs were identified by FTIR spectroscopy. Crystalline nature of ZnO-NPs was confirmed by powder –XRD. Size and morphology were measured by HR-TEM analysis. Stability of the nanoparticles is represented by DLS and TGA analysis. The synthesized ZnO-NPs has been found good and efficient catalyst for the synthesis of novel 1,2-dihydroquinazoline derivatives under green method via one pot reaction of 2-amino benzophenone, 1,3-diphenyl-1 H -pyrazole carbaldehydes and ammonium acetate. The synthesized compounds (4a-o) were characterized by 1 HNMR, 13 CNMR and HRMS spectra and further screened for radical scavenging activity. Among all the compounds showed good percentage of inhibition against standard ascorbic acid. The synthesized ZnO nanoparticles showed good antioxidant activity and also act as a good promising material for catalytic agent.

scholarly journals Response of biogenic zinc oxide nanoparticles against periimplantitis triggering non periodontal pathogen

2020 ◽  
Vol 11 (3) ◽  
pp. 3889-3896
Author(s):  
Shivkanya Fuloria ◽  
Chiam Sin Ru ◽  
Neeraj Paliwal ◽  
Sundram Karupiah ◽  
Kathiresan Sathasivam ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Aqueous Extract ◽  
Zinc Acetate ◽  
Zinc Oxide Nanoparticles ◽  
Inhibitory Response ◽  
Stability Study ◽  
Periodontal Pathogen ◽  
Oxide Nanoparticles ◽  
Dimocarpus Longan ◽  
Nano Medicine

Biogenic zinc oxide nanoparticles (BZnONPs) as a nano medicine attain high importance in the treatment of Peri Implantitis (PI). Present study was aimed to biosynthesize, optimize, characterize and evaluate the response of BZnONPs against PI triggering non periodontal pathogen. The BZnONPs synthesis, characterization, optimization and stability were based on UV-Visible, FTIR, XRD, FESEM, and EDX data. The BZnONPs were tested against S. aureus. Treatment of zinc acetate with Dimocarpus longan leaves extract resulted in formation of BZnONPs, which exhibited the absorbance signal between 350- 359 nm. Optimization study established 0.05 M zinc acetate, 6 ml of DLL aqueous extract, pH 12, and 2 h stirring time as parametric requirements for BZnONPs synthesis. Stability study of BZnONPs exhibited absorbance at 340 nm. The BZnONPs were characterized based on broad and shifted FT-IR bands, XRD signals (at 2θ values of 31.70◦ , 34.33◦ , 36.19◦ , 47.45◦ , 56.52◦ , 62.78◦ , 67.88◦ and 72.45◦ ), size range from 42.07-61.33 nm in FESEM, and elemental zinc 74.22 % in EDX spectrum. The BZnONPs exhibited high inhibitory response towards S. aureus. Present study establish that BZnONPs synthesis using Dimocarpus longan leaves aqueous extract is a facile method and reports that BZnONPs could be potential remedy for PI.

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