Zinc Oxide Nanoparticles Coated with (3-Aminopropyl)triethoxysilane as Additives for Boosting the Dielectric, Ferroelectric, and Piezoelectric Properties of Poly(vinylidene fluoride) Films for Energy Harvesting

2021 ◽  
Vol 4 (2) ◽  
pp. 1798-1809
Author(s):  
Akash M. Chandran ◽  
S. Varun ◽  
Subash Cherumannil Karumuthil ◽  
Soney Varghese ◽  
Prasanna Kumar S. Mural
Keyword(s):  
Zinc Oxide ◽  
Energy Harvesting ◽  
Zinc Oxide Nanoparticles ◽  
Vinylidene Fluoride ◽  
Piezoelectric Properties ◽  
Oxide Nanoparticles ◽  
Poly Vinylidene Fluoride ◽  
Ferroelectric And Piezoelectric Properties

scholarly journals Antibacterial Ferroelectric Hybrid Membranes Fabricated via Electrospinning for Wound Healing

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 986
Author(s):  
Ivan V. Lukiev ◽  
Ludmila S. Antipina ◽  
Semen I. Goreninskii ◽  
Tamara S. Tverdokhlebova ◽  
Dmitry V. Vasilchenko ◽  
...  
Keyword(s):  
Wound Healing ◽  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Vinylidene Fluoride ◽  
Antibacterial Properties ◽  
Oxide Nanoparticles ◽  
Hybrid Membranes ◽  
Electrospinning Technique ◽  
Β Phase

In the present study, wound healing ferroelectric membranes doped with zinc oxide nanoparticles were fabricated from vinylidene fluoride-tetrafluoroethylene copolymer and polyvinylpyrrolidone using the electrospinning technique. Five different ratios of vinylidene fluoride-tetrafluoroethylene to polyvinylpyrrolidone were used to control the properties of the membranes at a constant zinc oxide nanoparticle content. It was found that an increase of polyvinylpyrrolidone content leads to a decrease of the spinning solution conductivity and viscosity, causing a decrease of the average fiber diameter and reducing their strength and elongation. By means of X-ray diffraction and infrared spectroscopy, it was revealed that increased polyvinylpyrrolidone content leads to difficulty in crystallization of the vinylidene fluoride-tetrafluoroethylene copolymer in the ferroelectric β-phase in membranes. Changing the ratio of vinylidene fluoride-tetrafluoroethylene copolymer and polyvinylpyrrolidone with a constant content of zinc oxide nanoparticles is an effective approach to control the antibacterial properties of membranes towards Staphylococcus aureus. After carrying out in vivo experiments, we found that ferroelectric hybrid membranes, containing from five to ten mass percent of PVP, have the greatest wound-healing effect for the healing of purulent wounds.

Cationic Surfactant Assisted Enhancement of Dielectric and Piezoelectric Properties of PVDF nanofibers for Energy Harvesting Application

Soft Matter ◽  
2021 ◽  
Author(s):  
Govind Shreenivas Ekbote ◽  
Mohammed Khalifa ◽  
Arunjunairaj Mahendran ◽  
Srinivasan Anandhan
Keyword(s):  
Energy Harvesting ◽  
Cationic Surfactant ◽  
Vinylidene Fluoride ◽  
Piezoelectric Properties ◽  
Wide Range ◽  
Poly Vinylidene Fluoride ◽  
Dielectric And Piezoelectric Properties ◽  
Surfactant Assisted

Poly(vinylidene fluoride) (PVDF) is among the most versatile polymers due to its wide range of properties, including dielectric, piezoelectric and ferroelectric. However, more frequently than not a range of processing...

Optical Characteristics of Zinc Oxide Nanoparticles with Surface Modification Using Polyethylene Glycol

2014 ◽  
Vol 29 (10) ◽  
pp. 1039
Author(s):  
TAN Man-Lin ◽  
WANG Yan-Tao ◽  
ZHANG Wei-Li ◽  
FU Dong-Ju ◽  
LI Dong-Shuang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Surface Modification ◽  
Polyethylene Glycol ◽  
Zinc Oxide Nanoparticles ◽  
Optical Characteristics ◽  
Oxide Nanoparticles

A comparative study of the antibacterial activity of Quercus robur (Ethanolic extract) and Zinc oxide nanoparticles on Salmonella (In vitro)

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hams H. H. Alfattli ◽  
Ghufran Zuhair Jiber ◽  
Ghaidaa Gatea Abbass
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Oxide Nanoparticles ◽  
Quercus Robur ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Significant Inhibition ◽  
Oxide Nanoparticles ◽  
Inhibition Zones

This study which designed to evaluate the inhibitory effect of Ethanolic extract of (Quercusrobur) and Zinc oxide nanoparticles on the growth of one genus of enterobacteriacae (Salmonella). In vitro. For this purpose graduate concentrates for plant extract (50, 100, 200, 400 )mg/ml which prepared and compared with Zinc oxide nanoparticles of different concentration (2, 1, 0.5, 0.25) μg/ml,and examined. The result showed that the studied medicinal plant has antibacterial activity against this bacteria which used. The result showed that the plant has good activity in decrease the growth of this bacteria. The results of the study also showed that the nano-ZnO has very effective antibacterial action against the studied bacteria which was Salmonella,nanoparticles concentrations lead to increasing in the inhibition zones of tested bacterial growth. We also study the effect of three antibiotics Lomefloxacin (LOM), Ciprofloxacin (SIP) and Rifampin (RA) and the result showed,in a comparison within the tested bacteria,Salmonella had a significant inhibition increase in Lomefloxacin ; the ciprofloxacin showed effect on tested bacteria. However,Rifampin does not show any effect on tested bacteria.

Sign in / Sign up

Export Citation Format

Share Document