Zinc oxide nanoparticles: Biosynthesis, characterization, antifungal and cytotoxic activity

2019 ◽  
Vol 104 ◽  
pp. 109981 ◽  
Author(s):  
Abdolhossien Miri ◽  
Nafiseh Mahdinejad ◽  
Omolbanin Ebrahimy ◽  
Mehrdad Khatami ◽  
Mina Sarani
Keyword(s):  
Zinc Oxide ◽  
Cytotoxic Activity ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Biosynthesis of Hydroxy Citric Acid Mediated Zinc Nanoparticles and Its Antioxidant and Cytotoxic Activity

2020 ◽  
pp. 108-112
Author(s):  
S. Barani Shankar ◽  
Lakshminarayanan Arivarasu ◽  
S. Rajeshkumar
Keyword(s):  
Zinc Oxide ◽  
Citric Acid ◽  
Cytotoxic Activity ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
High Catalytic Activity ◽  
Garcinia Cambogia ◽  
Zinc Nanoparticles ◽  
Garcinia Indica ◽  
Brine Shrimp Lethality Assay

Aim: To evaluate biosynthesis of hydroxy citric acid mediated zinc nanoparticle and its antioxidant and cytotoxic activity Introduction: Hydroxy citric acid is a chemical that is found in fruit rinds of Garcinia cambogia, Garcinia indica, and Garcinia atroviridis. Hydroxy citric acid is used to improve exercise performance and weight loss. Hydroxy citric acid can cause nausea, digestive tract discomfort, and headache when used short-term. Long-term safety is unknown.Zinc oxide nanoparticles are nanoparticles of zinc oxide that have diameters less than 100 nanometers. Zinc nanoparticles have a large surface area relative to their size and high catalytic activity. The exact physical and chemical properties of zinc oxide nanoparticles depend on the different ways they are synthesized. zinc oxide nanoparticles have also been shown to exhibit strong protein adsorption properties, which can be used to modulate cytotoxicity, metabolism or other cellular responses. Materials and Methods: Evaluation of anti-oxidant was done by DPPH activity and evaluation of cytotoxic activity was done by brine shrimp lethality assay. Colour changes was noted in evaluation of cytotoxic activity Results: The antioxidant activity was exhibited well at higher doses when compared to standard, but there was only 40% of cytotoxicity achieved which indicates its potential.Cytotoxic activity reveals that the drug showed a very good result at a concentration of  25 ul it showed a 40% of lethality thereby showing  that Hydroxycitric acid medicated zinc oxide nanoparticles shows a potent activity when compared to that with the standard. Conclusion: The study concludes that hydroxy citric acid shows good antioxidant and cytotoxic activity.

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.

Evaluation of the Effect of Nanoparticles Zinc Oxide/Camellia sinensis Complex on the Kidney of Rats Treated with Monosodium Glutamate: Antioxidant and Histological Approaches

2019 ◽  
Vol 20 (7) ◽  
pp. 542-550 ◽  
Author(s):  
Nahla S. El-Shenawy ◽  
Reham Z. Hamza ◽  
Fawziah A. Al-Salmi ◽  
Rasha A. Al-Eisa
Keyword(s):  
Zinc Oxide ◽  
Camellia Sinensis ◽  
Zinc Oxide Nanoparticles ◽  
Morphological Changes ◽  
Monosodium Glutamate ◽  
Oxide Nanoparticles ◽  
High Dose ◽  
Enzymatic Antioxidants ◽  
Zno Nps ◽  
Tea Extract

Background: Zinc oxide nanoparticles (ZnO NPs) are robustly used biomedicine. Moreover, no study has been conducted to explore the consequence of green synthesis of ZnO NPs with Camellia sinensis (green tea extract, GTE) on kidneys of rats treated with monosodium glutamate (MSG). Methods: Therefore, the objective of the research was designed to explore the possible defensive effect of GTE/ZnO NPs against MSG-induced renal stress investigated at redox and histopathological points. Results: The levels of urea and creatinine increased as the effect of a high dose of MSG, in addition, the myeloperoxidase and xanthine oxidase activates were elevated significantly with the high dose of MSG. The levels of non-enzymatic antioxidants (uric acid, glutathione, and thiol) were decreased sharply in MSG-treated rats as compared to the normal group. Conclusion: The data displayed that GTE/ZnO NPs reduced the effects of MSG significantly by reduction of the level peroxidation and enhancement intracellular antioxidant. These biochemical findings were supported by histopathology evaluation, which showed minor morphological changes in the kidneys of rats.

Zinc oxide nanoparticles help to enhance plant growth and alleviate abiotic stress: A review

2020 ◽  
Vol 21 ◽  
Author(s):  
Mohammad Faizan ◽  
Fangyuan Yu ◽  
Chen Chen ◽  
Ahmad Faraz ◽  
Shamsul Hayat
Keyword(s):  
Zinc Oxide ◽  
Plant Growth ◽  
Abiotic Stresses ◽  
Zinc Oxide Nanoparticles ◽  
Growth And Yield ◽  
Oxide Nanoparticles ◽  
Main Concern ◽  
Negative Effects ◽  
Zno Nps ◽  
Agricultural Yield

: Abiotic stresses arising from atmosphere change belie plant growth and yield, leading to food reduction. The cultivation of a large number of crops in the contaminated environment is a main concern of environmentalists in the present time. To get food safety, a highly developed nanotechnology is a useful tool for promoting food production and assuring sustainability. Nanotechnology helps to better production in agriculture by promoting the efficiency of inputs and reducing relevant losses. This review examines the research performed in the past to show how zinc oxide nanoparticles (ZnO-NPs) are influencing the negative effects of abiotic stresses. Application of ZnO-NPs is one of the most effectual options for considerable enhancement of agricultural yield globally under stressful conditions. ZnO-NPs can transform the agricultural and food industry with the help of several innovative tools in reversing oxidative stress symptoms induced by abiotic stresses. In addition, the effect of ZnO-NPs on physiological, biochemical, and antioxidative activities in various plants have also been examined properly. This review summarizes the current understanding and the future possibilities of plant-ZnO-NPs research.

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