Article
Chemistry, Applied
Yolanda Aysa-Martinez, Silvia Anoro-Lopez, Miguel Cano, Daniel Julve, Jorge Perez, Joaquin Coronas
Summary: Amorphous magnesium silicates with different SiO2:MgO molar ratios were synthesized in this study through a precipitation reaction, and the effect of the SiO2:Na2O molar ratio in the Na2SiO3 solution on the properties of the materials was investigated. It was found that this ratio is a key parameter in the synthesis process. Laboratory tests were scaled up in an industrial pilot plant to demonstrate the high scalability of the materials, with properties comparable to commercial materials containing magnesium silicate.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Review
Biochemistry & Molecular Biology
Kien A. A. Vu, Catherine N. N. Mulligan
Summary: Oil-contaminated soil is a concerning issue due to its potential harm to humans, animals, and the environment. Nanoparticles and surfactant foams have shown promise in remediation of oil pollutants in soil. This review evaluates the fate and transport of oil compounds, interaction between nanoparticles and surfactant foam, removal mechanisms, and factors affecting remediation efficiency, while highlighting the need for further research on soil types, cost, and post-treatment processes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Electrical & Electronic
A. Abdeldaym, M. M. Magida, H. H. Elnahas
Summary: This study investigates the structural and physical properties of polyurethane composites filled with magnesium silicate and subjected to gamma irradiation. Various analyses, including XRD, SEM, UV-Vis spectroscopy, and thermogravimetric analysis, were conducted to study the properties of the composites. The results showed changes in optical properties, refractive index dispersion, dielectric constants, and thermal stability with the addition of magnesium silicate and gamma irradiation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Sang-Ho Chung, Adrian Ramirez, Tuiana Shoinkhorova, Ildar Mukhambetov, Edy Abou-Hamad, Selevedin Telalovic, Jorge Gascon, Javier Ruiz-Martinez
Summary: The Lebedev process involves converting ethanol to butadiene catalytically, with silica-magnesia being a key catalyst for this process. Different preparation methods impact the performance of the catalyst, with wet-kneading resulting in the formation of surface magnesium silicates. The calcination temperature plays a significant role in determining the type of magnesium silicates formed, which in turn affects the catalytic properties and product formation.
Article
Pharmacology & Pharmacy
Demet Cicek, Betul Demir, Cemal Orhan, Mehmet Tuzcu, Ibrahim Hanifi Ozercan, Nurhan Sahin, James Komorowski, Sara Perez Ojalvo, Sarah Sylla, Kazim Sahin
Summary: The combination treatment of ASI and MgB effectively alleviated skin damage induced by UVB exposure in rats, improving skin appearance, elasticity, and regulating various biochemical parameters and signaling pathways.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Construction & Building Technology
Hamdy A. Abdel-Gawwad, Taher A. Tawfik, Pawel Sikora, Mohamed Abd Elrahman
Summary: This paper focuses on synthesizing alkali-activated binders using magnesium carbonate as the precursor. The study found that different alkali sources have a significant impact on the composition and compressive strength of the final product. The effects of adding a silicate source and lead glass sludge on the properties of the binder were also investigated. The results showed that the performance of the binder can be controlled by using different alkali sources and additives.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Physical
Rafael R. Domeneguetti, Vanessa Y. Sakai, Gustavo F. Perotti, Isabel C. Silva, Agnieszka Tercjak, Hernane S. Barud, Fernando Pavan, Vera R. L. Constantino, Sidney J. Ribeiro
Summary: The effect of different concentrations of Laponite on the structure and properties of bacterial cellulose (BC) membranes was investigated. It was found that an appropriate amount of Laponite can improve the transparency and properties of BC membranes. This opens up new possibilities for the application of nanocomposites in the fields of medical, pharmaceutical, and cosmetics.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
J. C. R. Araujo, S. Araujo-Barbosa, A. L. R. Souza, C. A. M. Iglesias, J. Xavier, P. B. Souza, C. C. Pla Cid, S. Azevedo, R. B. da Silva, M. A. Correa, S. N. de Medeiros, E. F. Silva, F. Bohn
Summary: We investigated MgFe2O4 nanoparticles synthesized by the sol-gel method and heat treated at different temperatures. The study found that the structural, magnetic, electrical, and dielectric properties of the particles varied with the treatment temperature.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Ellina Bernard, Barbara Lothenbach, Daniel Rentsch
Summary: The presence of sodium nitrate in the reactions led to the formation of hydrotalcite-like phases and possibly hydrated alumino-silicate gel containing sodium. These minor phases limited the aluminum uptake by magnesium silicate hydrate at higher aluminum contents.
MATERIALS & DESIGN
(2021)
Article
Geochemistry & Geophysics
X-N Liu, R. C. Hin, C. D. Coath, M. van Soest, E. Melekhova, T. Elliott
Summary: This study investigates the issue of elevated magnesium isotope ratios in arc lavas by analyzing the magnesium isotope fractionation between olivine and melt. The results show that primitive arc lavas have similar magnesium isotope ratios to MORB, while evolved arc lavas tend to have isotopically heavier compositions. This variability can be explained by olivine fractionation.
GEOCHEMICAL PERSPECTIVES LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Joseff Renato Mejia-Bernal, Takawira Joseph Mumanga, L. A. Diaz-Torres, Miguel Angel Vallejo-Hernandez, Christian Gomez-Solis
Summary: Alkaline earth metal silicates (MSiO3, M = Ba, Sr, Mg) were prepared by combustion synthesis and evaluated as photocatalysts for the Hydrogen Evolution Reaction under UV light. Among them, MgSiO3 exhibited the highest hydrogen evolution rate, more than three times that of other silicates and TiO2.
Article
Energy & Fuels
F. Barzegari, M. Kazemeini, M. Rezaei, F. Farhadi, A. R. Keshavarz
Summary: In this study, a NiO-MgO-SiO2 catalyst was prepared and subjected to calcination at different temperatures for syngas production via propane dry reforming. Increasing the calcination temperature led to lower catalyst basicity, while the highest propane and CO2 conversions were achieved at 650 degrees C.
Article
Medicine, Research & Experimental
Masao Nagao, Abdul-Hackam Ranneh, Yasunori Iwao, Katsuhiko Yamamoto, Yukihiro Ikeda
Summary: Gemini surfactant DLGL was found to improve the structural stability of PHY cubosomes at specific concentrations, forming stable Im $(3) over bar $m cubosomes under low-temperature storage conditions. Excess DLGL interfered with cubosome formation and led to the transformation into small unilamellar vesicles.
MOLECULAR PHARMACEUTICS
(2023)
Article
Environmental Sciences
Kien A. Vu, Catherine N. Mulligan
Summary: This study explored the use of a biosurfactant foam/nanoparticle mixture for remediating oil-contaminated soil. The results showed that the mixture effectively removed oil contaminants, with a maximum treatment efficiency of 67%. The stability of the foam was influenced by the foam quality, biosurfactant concentration, and nanoparticle dosage.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Characterization & Testing
Seydeh Negar Hosseini, Sajad Pirsa, Jafar Farzi
Summary: An antibacterial/antioxidant film based on modified starch and albumin containing magnesium oxide nanoparticles was synthesized. The addition of MgO nanoparticles increased film thickness, reduced moisture content, water solubility, and water vapor permeability, while enhancing antioxidant activity. Films with MgO nanoparticles showed rougher and more heterogeneous surface morphology compared to films without nanoparticles, confirming the presence of MgO in the polymer matrix. Additionally, the films exhibited antimicrobial properties against Escherichia coli and Staphylococcus aureus.
