scholarly journals Effect of process parameters on the physicochemical properties of nano- and micrometric zinc oxide

2016 ◽  
pp. 317-322 ◽  
Author(s):  
Jolanta Pulit-Prociak ◽  
Marcin Banach
Keyword(s):  
Zinc Oxide ◽  
Physicochemical Properties ◽  
Process Parameters

scholarly journals Mechanisms and effects of zinc oxide nanoparticle transformations on toxicity to zebrafish embryos

2021 ◽  
Author(s):  
Gyudong Lee ◽  
Byongcheun Lee ◽  
Ki-Tae Kim
Keyword(s):  
Zinc Oxide ◽  
Physicochemical Properties ◽  
Zebrafish Embryos ◽  
Zinc Ions ◽  
Zno Nps ◽  
Zinc Oxide Nanoparticle ◽  
Toxicity Reduction ◽  
Oxide Nanoparticle

Environmental transformations modify the physicochemical properties of ZnO NPs, modulate their ability to reduce zinc ions, and determine the degree of toxicity reduction in zebrafish embryos.

Design and optimization of process parameters of polyvinyl (alcohol)/chitosan/nano zinc oxide hydrogels as wound healing materials

2019 ◽  
Vol 207 ◽  
pp. 542-554 ◽  
Author(s):  
Mohammad Taghi Khorasani ◽  
Alireza Joorabloo ◽  
Hassan Adeli ◽  
Zohreh Mansoori-Moghadam ◽  
Armaghan Moghaddam
Keyword(s):  
Wound Healing ◽  
Zinc Oxide ◽  
Polyvinyl Alcohol ◽  
Process Parameters ◽  
Design And Optimization ◽  
Optimization Of Process Parameters ◽  
Nano Zinc Oxide ◽  
Nano Zinc

scholarly journals Influence of Zinc Oxide Nanoparticles on Soil Physicochemical Properties and Arachis hypogea Rhizosphere Microbial Community

2020 ◽  
pp. 88-100
Author(s):  
Progress Oghenerume ◽  
Samuel Eduok ◽  
Basil Ita ◽  
Ofonime John ◽  
Inemesit Bassey
Keyword(s):  
Zinc Oxide ◽  
Physicochemical Properties ◽  
Soil Type ◽  
Organic Matter Content ◽  
Matter Content ◽  
Phosphorus Concentration ◽  
Soil Physicochemical Properties ◽  
Amended Soils ◽  
Loam Soil ◽  
Amended Soil

We evaluated the effect of 4000 mg zinc oxide (ZnO, 99%, 30 nm) nanoparticle on the physicochemical and microbiological properties of organic manure amended ultisol and loam soil cultivated with Arachis hypogaea using standard methods. The results indicate varying effects on the physicochemical properties in relation to the soil type. The pH of the control ultisol at 7.85 ± 0.17 and 8.3 ± 0.12 in the amended ultisol whereas, the control loam was 7.15 ± 0.17 and 7.41 ± 0.11 in the amended soil indicating 1.06- and 1.04-times higher difference than the controls respectively.  Phosphorus concentration at 57.82 ± 0.54%, 50.81 ± 0.22% and 55.97 ± 0.04%, 59.97 ± 0.02% was 1.14 times lower in the ZnO amended ultisol and 1.07 times higher in amended loam soil compared to the respective controls. The organic matter content in the control and amended ultisol was 2.28 ± 0.32% and 0.91 ± 0.02%, 3.68 ± 0.36% and 0.36 ± 0.02% in the control and amended loam soil. The concentration of nitrate in the control ultisol was 0.05 ± 0.01% and 0.03 ± 0.01% in the amended soil. The nitrate in the control loam soil was 0.08 ± 0.01% relative to 0.02 ± 0.01% in the treated soil and these differences were significant at p = 0.05. The concentration of nutritive salts was reduced and in contrast iron, copper, exchangeable acids, exchange capacity, clay and silt increased in the amended soils. Further to this, heterotrophic ammonia and nitrate-oxidizing bacterial population were inhibited in the amended soils and denitrifying organisms were stimulated. The organisms were members of the genera Pseudomonas, Xanthobacter, Enterobacter, Bacillus, Lactobacillus, Citrobacter, Nitrosomonas, Agromyces and Rhizobium. ZnO nanoparticles altered the soil physicochemical properties which exacerbated the negative effect on microbial abundance and varied with the soil type.

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