Results 21 to 30 of about 645,607 (300)

Toxicity to RAW264.7 Macrophages of Silica Nanoparticles and the E551 Food Additive, in Combination with Genotoxic Agents

open access: yesNanomaterials, 2020
Synthetic amorphous silica (SAS) is used in a plethora of applications and included in many daily products to which humans are exposed via inhalation, ingestion, or skin contact.
Fanny Dussert   +8 more
doaj   +1 more source

Removal of 2,4-Dichloro Phenoxy Acetic Acid by Silica Particles Obtained from the Siliceous Sand of Houeyogbe(Republic of Benin) [PDF]

open access: yesJournal of Water and Environmental Nanotechnology
In this study, silica sands from the commune of Houéyogbé were used to synthesize silica particles by the sol-gel method, using sodium silicate as the reaction precursor.
Houefaannick Leslie Glitho   +7 more
doaj   +1 more source

Ionic Liquids-Containing Silica Microcapsules: A Potential Tunable Platform for Shaping-Up Epoxy-Based Composite Materials?

open access: yesNanomaterials, 2020
In this work, silica microcapsules containing phosphonium ionic liquid (IL), denoted SiO2@IL, were successfully synthesized for the first time using the one step sol-gel method in IL/H20 emulsion.
Ting Shi   +3 more
doaj   +1 more source

Cell-Mediated Deposition of Porous Silica on Bacterial Biofilms [PDF]

open access: yes, 2011
Living hybrid materials that respond dynamically to their surrounding environment have important applications in bioreactors. Silica based sol-gels represent appealing matrix materials as they form a mesoporous biocompatible glass lattice that allows for
McLarmore, Eric   +15 more
core   +1 more source

Effect of Five Types Inert Dust to Rhyzopertha dominica (Fabricius) (Coleoptera: Bostrichidae) in Stored Rice Seeds

open access: yesJournal of Experimental Life Science, 2019
Rhyzopertha dominica (F.) is one of the primary pests in stored rice. Generally, pest control in the storage was done by spraying and fumigation using synthetic insecticide.
Ludji Pantja Astuti   +3 more
doaj   +1 more source

The size and polydispersity of silica nanoparticles under simulated hot spring conditions [PDF]

open access: yes, 2008
The nucleation and growth of silica nanoparticles in supersaturated geothermal waters was simulated using a flow-through geothermal simulator system. The effect of silica concentration ([SiO2]), ionic strength (IS), temperature (T) and organic additives ...
Tobler, D.J., Knapp, J., Benning, L.G.
core   +1 more source

Evolution of Oxygen Deficiency Center on Fused Silica Surface Irradiated by Ultraviolet Laser and Posttreatment [PDF]

open access: yes, 2014
Evolution of oxygen deficiency centers (ODCs) on a fused silica surface irradiated using a 355 nm ultraviolet (UV) laser beam in both vacuum and atmospheric conditions was quantitatively studied using photoluminescence and X-ray photoelectron ...
Hai-Bing Lü   +11 more
core   +1 more source

Remote control of diffusion from magnetic hollow silica microspheres [PDF]

open access: yes, 2013
Composite hollow core silica/iron oxide microparticles with the ability to store an encapsulated payload and release a defined quantity “on demand” by the application of a radiofrequency magnetic field were prepared.
Kovačík, Pavel   +2 more
core   +1 more source

Utilizing Hydrophobic Sand to Construct an Air-Permeable Aquiclude to Enhance Rice Yield and Lodging Resistance

open access: yesAgronomy
Global climate change and persistent droughts lead to soil desertification, posing significant challenges to food security. Desertified lands, characterized by high permeability, struggle to retain water, thereby hindering ecological restoration. Sand, a
Xiaoyan Ma   +4 more
doaj   +1 more source

Silica nanoparticles and their interaction with cells : a multidisciplinary approach [PDF]

open access: yes, 2014
Silica nanoparticles are increasingly used as drug delivery systems and for biomedical imaging. Therapeutic and diagnostic agents can be incorporated into the silica matrix to improve the stability and solubility of hydrophobic drugs in biological ...
Kettiger, Hélène Emilie
core   +1 more source

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