One-step green synthesis of ZnO nanoparticles using Opuntia humifusa fruit extract and their antibacterial activities

2021 ◽  
Author(s):  
M. Chennimalai ◽  
V. Vijayalakshmi ◽  
T.S. Senthil ◽  
N. Sivakumar
Keyword(s):  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Antibacterial Activities ◽  
Fruit Extract ◽  
Opuntia Humifusa ◽  
One Step

Fabrication of ZnO Nanoparticles by Hyperbranched Polymer and their Application on the Functional Finishing of Cotton Fabric

2013 ◽  
Vol 796 ◽  
pp. 353-359
Author(s):  
De Suo Zhang ◽  
Yan Fen Liao ◽  
Hong Lin ◽  
Yu Yue Chen
Keyword(s):  
Cotton Fabric ◽  
Zno Nanoparticles ◽  
Hyperbranched Polymer ◽  
Antibacterial Activities ◽  
Cotton Fabrics ◽  
Zinc Nitrate ◽  
Bacterial Reduction ◽  
X Ray ◽  
One Step ◽  
Uv Protective Properties

A novel ZnO nanoparticles aqueous solution was prepared through a one-step reaction between a modified hyperbranched polymer-PNP and zinc nitrate. During the reaction process, PNP not only acted as the reagent to produce ZnO nanoparticles, but also controlled the size of the synthesized ZnO nanoparticles and stabilize them after reaction. The size of ZnO nanoparticles were about 6 nm with narrow size distribution. Then the ZnO nanoparticles were utilized for the functional finishing of cotton fabrics by in situ generation and deposition method. Scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) measurements confirmed the ZnO nanoparticles coated on the cotton fibers. The treated cotton fabrics exhibited excellent UV protective properties and antibacterial activities. When the ZnO content in cotton fabric was 2.23 %, the UPF value of treated cotton fabric reached 114.4 and the bacterial reduction rates againstStaphylococcus aureus(S. aureus) andEscherichia coli(E. coli) both exceeded 98 %.

Averrhoe carrambola fruit extract assisted green synthesis of zno nanoparticles for the photodegradation of congo red dye

2020 ◽  
Vol 19 ◽  
pp. 100488 ◽  
Author(s):  
Sohini Chakraborty ◽  
J. Joselin Farida ◽  
Remya Simon ◽  
S. Kasthuri ◽  
N.L. Mary
Keyword(s):  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Congo Red ◽  
Fruit Extract ◽  
Congo Red Dye ◽  
Red Dye

scholarly journals Nanoscaled Electrocatalytic Optically Modulated ZnO Nanoparticles through Green Process ofPunica granatumL. and Their Antibacterial Activities

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Xolile Fuku ◽  
Abdoulaye Diallo ◽  
Malik Maaza
Keyword(s):  
Metal Oxide ◽  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Antibacterial Activities ◽  
Oxide Semiconductor ◽  
Bacterial Strains ◽  
Zno Nps ◽  
Nanoparticle Biosynthesis ◽  
High Concentrations

Most recently, green synthesis of metal oxide nanoparticles has become an interesting subject of the nanoscience and nanotechnology. The use of plant systems has been deemed a green route and a dependable method for nanoparticle biosynthesis, owing to its environmental friendly nature. The present work demonstrates the bioreductive green synthesis of nanosized zinc oxide (ZnO) using peel extracts of pomegranate. Highly crystalline ZnO nanoparticles (ZnO NPs) which are 5 nm in particle size were characterised by HRTEM and XRD. FT-IR spectra confirmed the presence of the biomolecules and formation of plant protein-coated ZnO NPs and also the pure ZnO NPs. Electrochemical investigation revealed the redox properties and the conductivity of the as-prepared ZnO nanoparticles. The optical band gap of ZnO NPs was calculated to be 3.48 eV which indicates that ZnO NPs can be used in metal oxide semiconductor-based devices. Further, the nanomaterials were also found to be good inhibitors of bacterial strains at both low and high concentrations of 5–10 mg mL−1.

scholarly journals Green Synthesis of Gold and Silver Nanoparticles UsingAverrhoa bilimbiFruit Extract

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
R. S. Rimal Isaac ◽  
G. Sakthivel ◽  
Ch. Murthy
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Absorption Spectroscopy ◽  
Metal Ion ◽  
Cost Effective ◽  
Average Diameter ◽  
Ion Concentration ◽  
Fruit Extract ◽  
Gold And Silver Nanoparticles ◽  
One Step

We report on rapid one-step green synthesis of gold and silver nanoparticles using fruit extract ofAverrhoa bilimbi Linn. UV-Vis absorption spectroscopy was used to monitor the quantitative formation of gold and silver nanoparticles. The characteristics of the obtained gold and silver nanoparticles were studied using UV-Vis absorption spectroscopy (UV/Vis), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy-dispersive spectroscopy (EDX). UV/Vis spectrum showed Surface Plasmon Resonance (SPR) for both gold and silver nanoparticles at 540 and 420 nm. The EDX spectrum of the solution containing gold and silver nanoparticles confirmed the presence of elemental gold and silver signals. The average diameter of the prepared nanoparticles in solution was about 50–150 nm. Synthesized particles were either hexagonal or rhomboidal in shape. This synthesis approach of gold and silver nanoparticles is cost effective and can be widely used in biological systems. The effect of fruit extract and metal ion concentration was also studied.

Fabrication of Antibacterial and UV Protective Silk Fabrics via in Situ Generating ZnO Nanoparticles by Hyperbranched Polymer

2013 ◽  
Vol 796 ◽  
pp. 374-379 ◽  
Author(s):  
Yan Fen Liao ◽  
De Suo Zhang ◽  
Yu Yue Chen ◽  
Hong Lin
Keyword(s):  
Zno Nanoparticles ◽  
Hyperbranched Polymer ◽  
Antibacterial Activities ◽  
Zinc Nitrate ◽  
Bacterial Reduction ◽  
Silk Fibers ◽  
One Step ◽  
Uv Protective Properties ◽  
Silk Fabrics

This paper presents a method of fabricating ZnO nanoparticles coated silk fabrics via a one-step in situ generation and deposition reaction. In this procedure, amino terminated hyperbranched polymer (HBP-NH2) and zinc nitrate were used as the precursors without any other binders. The results indicated that UV protective properties and antibacterial activities of treated silk fabrics grew in quantity with increase of the concentration of precursors in this reaction process. When the concentration of HBP-NH2and zinc nitrate were 24 g/L and 17.85g/L respectively, the UPF value of treated silk fabric was 131 and the bacterial reduction rates againstStaphylococcus aureusandEscherichia coliboth exceeded 99%. Moreover, the treated silk fabrics were characterized by FESEM, EDS and XRD which demonstrated that the ZnO nanoparticles coated on the silk fibers successfully and well dispersed with diameter around 90nm.

scholarly journals Green synthesis of ZnO nanoparticles using orange fruit peel extract for antibacterial activities

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 23899-23907 ◽  
Author(s):  
Tu Uyen Doan Thi ◽  
Trung Thoai Nguyen ◽  
Y Dang Thi ◽  
Kieu Hanh Ta Thi ◽  
Bach Thang Phan ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Environmentally Friendly ◽  
Antibacterial Activities ◽  
Simple Approach ◽  
Fruit Peel ◽  
Zno Nps ◽  
Orange Fruit ◽  
Peel Extract

This paper presents an efficient, environmentally friendly, and simple approach for the green synthesis of ZnO nanoparticles (ZnO NPs) using orange fruit peel extract.

scholarly journals Capsicum annuum Fruit Extract: A Novel Reducing Agent for the Green Synthesis of ZnO Nanoparticles and Their Multifunctional Applications

2018 ◽  
pp. 354-364 ◽  
Author(s):  
Haraluru Shankraiah Lalithamba ◽  
Mahadevaiah Raghavendra ◽  
Kogali Uma ◽  
Kalanakoppal Venkatesh Yatish ◽  
Das Mousumi ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Capsicum Annuum ◽  
Zno Nanoparticles ◽  
Reducing Agent ◽  
Fruit Extract

scholarly journals Green Synthesis and Characterization of Zinc Oxide Nanoparticles Using Mulberry Fruit and Their Antioxidant Activity

2021 ◽  
pp. X
Author(s):  
Nedra ABBES ◽  
Imene BEKRI ◽  
Meilin CHENG ◽  
Nejib SEJRI ◽  
Morched CHEIKHROUHOU ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Zinc Oxide ◽  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Radical Scavenging ◽  
Oxide Nanoparticles ◽  
Fruit Extract ◽  
Mulberry Fruit ◽  
Free Radical Scavenging Assay

Biosynthesis of metal-oxide nanoparticles using plant extracts has been attracting increasing interest. In this study, we focused on the green synthesis of zinc oxide (ZnO) nanomaterials using zinc acetate as a precursor and mulberry fruit extract as a green reducing agent and determined the antioxidant activity. Powder X-ray diffraction and UV-Vis and Fourier Transform Infra-Red (FT-IR) spectroscopy were used for structure elucidation and to determine the crystallinity of the synthesized product. The morphology of samples was determined using Scanning Electron Microscopy (SEM). Our results indicated the successful synthesis of ZnO nanoparticles. SEM findings revealed the nanoparticles to be spherical; they were found to agglomerate and showed a narrow space between particles, which could be indicative of improved activity. The antioxidant activity of ZnO nanoparticles was determined using a 2,2-Diphenyl-1-Picryl-Hydrazyl (DPPH) free-radical scavenging assay taking into account time and concentration. Our results indicated that ZnO nanoparticles with mulberry fruit extract that were synthesized using green chemistry could effectively scavenge the free DPPH radicals, thereby confirming their superior antioxidant activity.

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