Facet-Dependent Adsorption and Fractionation of Natural Organic Matter on Crystalline Metal Oxide Nanoparticles

2020 ◽  
Vol 54 (14) ◽  
pp. 8622-8631 ◽  
Author(s):  
Zelin Shen ◽  
Zhanhua Zhang ◽  
Tong Li ◽  
Qingqian Yao ◽  
Tong Zhang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Metal Oxide ◽  
Natural Organic Matter ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Crystalline Metal

Non-aqueous routes to crystalline metal oxide nanoparticles: Formation mechanisms and applications

2005 ◽  
Vol 33 (2-4) ◽  
pp. 59-70 ◽  
Author(s):  
Markus Niederberger ◽  
Georg Garnweitner ◽  
Nicola Pinna ◽  
Giovanni Neri
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Formation Mechanisms ◽  
Oxide Nanoparticles ◽  
Crystalline Metal

scholarly journals A Review of Metal and Metal-Oxide Nanoparticle Coating Technologies to Inhibit Agglomeration and Increase Bioactivity for Agricultural Applications

Agronomy ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1018 ◽  
Author(s):  
Anthony Cartwright ◽  
Kyle Jackson ◽  
Christina Morgan ◽  
Anne Anderson ◽  
David W. Britt
Keyword(s):  
Organic Matter ◽  
Metal Oxide ◽  
Natural Organic Matter ◽  
Metal Oxide Nanoparticles ◽  
Cost Effective ◽  
Ionic Concentration ◽  
Rooting Zone ◽  
Metal Oxide Nanoparticle ◽  
Metal Metal ◽  
Soil Component

Coatings offer a means to control nanoparticle (NP) size, regulate dissolution, and mitigate runoff when added to crops through soil. Simultaneously, coatings can enhance particle binding to plants and provide an additional source of nutrients, making them a valuable component to existing nanoparticle delivery systems. Here, the surface functionalization of metal and metal-oxide nanoparticles to inhibit aggregation and preserve smaller agglomerate sizes for enhanced transport to the rooting zone and improved uptake in plants is reviewed. Coatings are classified by type and by their efficacy to mitigate agglomeration in soils with variable pH, ionic concentration, and natural organic matter profiles. Varying degrees of success have been reported using a range of different polymers, biomolecules, and inorganic surface coatings. Advances in zwitterionic coatings show the best results for maintaining nanoparticle stability in solutions even under high salinity and temperature conditions, whereas coating by the soil component humic acid may show additional benefits such as promoting dissolution and enhancing bioavailability in soils. Pre-tuning of NP surface properties through exposure to select natural organic matter, microbial products, and other biopolymers may yield more cost-effective nonagglomerating metal/metal-oxide NPs for soil applications in agriculture.

scholarly journals Mitigating effect of organic matter on the in vivo toxicity of metal oxide nanoparticles in the marine environment

2018 ◽  
Vol 5 (7) ◽  
pp. 1764-1777 ◽  
Author(s):  
Seta Noventa ◽  
Darren Rowe ◽  
Tamara Galloway
Keyword(s):  
Organic Matter ◽  
Metal Oxide ◽  
Marine Environment ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
In Vivo Toxicity

We investigate the effectiveness of two promising paradigms (i.e. dissolution and bandgap) to predict the toxicity of metal oxide nanoparticles (NPs) in vivo and under seawater conditions.

Star fruit extract-mediated green synthesis of metal oxide nanoparticles

2021 ◽  
pp. 1-8
Author(s):  
Sagadevan Suresh ◽  
Selvaraj Vennila ◽  
J. Anita Lett ◽  
Is Fatimah ◽  
Faruq Mohammad ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Green Synthesis ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Fruit Extract ◽  
Star Fruit

Quantum mechanics descriptors in a nano-QSAR model to predict metal oxide nanoparticles toxicity in human keratinous cells

2021 ◽  
Vol 23 (8) ◽  
Author(s):  
Eliecer Peláez Sifonte ◽  
Fidel Antonio Castro-Smirnov ◽  
Argenis Adrian Soutelo Jimenez ◽  
Héctor Raúl González Diez ◽  
Fernando Guzmán Martínez
Keyword(s):  
Quantum Mechanics ◽  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Qsar Model ◽  
Oxide Nanoparticles ◽  
Nanoparticles Toxicity

Evaluation of the skin sensitization potential of metal oxide nanoparticles using the ARE-Nrf2 Luciferase KeratinoSensTM assay

2021 ◽  
Author(s):  
Sung-Hyun Kim ◽  
DongHan Lee ◽  
JinHee Lee ◽  
Jun-Young Yang ◽  
JiHyun Seok ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Skin Sensitization

scholarly journals Controlling the optical properties of nanostructured oxide-based polymer films

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
N. C. Angastiniotis ◽  
S. Christopoulos ◽  
K. C. Petallidou ◽  
A. M. Efstathiou ◽  
A. Othonos ◽  
...  
Keyword(s):  
Optical Properties ◽  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Optimal Size ◽  
Specific Chemical ◽  
Nanostructured Oxide ◽  
Bulk Scale ◽  
Transmission And Reflection ◽  
Film Composites

AbstractA bulk scale process is implemented for the production of nanostructured film composites comprising unary or multi-component metal oxide nanoparticles dispersed in a suitable polymer matrix. The as-received nanoparticles, namely Al$$_2$$ 2 O$$_3$$ 3 , SiO$$_2$$ 2 and TiO$$_2$$ 2 and binary combinations, are treated following specific chemical and mechanical processes in order to be suspended at the optimal size and composition. Subsequently, a polymer extrusion technique is employed for the fabrication of each film, while the molten polymer is mixed with the treated metal oxide nanoparticles. Transmission and reflection measurements are performed in order to map the optical properties of the fabricated, nanostructured films in the UV, VIS and IR. The results substantiate the capability of the overall methodology to regulate the optical properties of the films depending on the type of nanoparticle formation which can be adjusted both in size and composition.

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