Results 21 to 30 of about 342,454 (258)

Spherical oligo-silicic acid SOSA disclosed as possible endogenous digitalis-like factor

open access: yesFrontiers in Endocrinology, 2015
Na+/K+-ATPase is a membrane ion-transporter protein, specifically inhibited by digitalis glycosides used in cardiac-therapy. The existence in mammals of some endogenous digitalis-like factors (EDLF) as presumed ATPase ligands is generally accepted.
Franz eKerek, Victor A Voicu
doaj   +1 more source

Hollow Silica Particles: A Novel Strategy for Cost Reduction

open access: yesNanomaterials, 2021
Thermal insulation materials are highly sought after for applications such as building envelopes, refrigerators, cryogenic fuel storage chambers, and water supply piping.
Daron Spence   +4 more
doaj   +1 more source

Functionalized Mesoporous Thin Films for Biotechnology

open access: yesMicromachines, 2021
Mesoporous materials bear great potential for biotechnological applications due to their biocompatibility and versatility. Their high surface area and pore interconnection allow the immobilization of molecules and their subsequent controlled delivery ...
Barbara Sartori   +2 more
doaj   +1 more source

Production of Acetaldehyde via Oxidative Dehydrogenation of Ethanol over AgLi/SiO2 Catalysts

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
Three AgLi/SiO2 catalysts containing different types of silica supports [small particle size (SPS), medium particle size (MPS) and large particle size (LPS)] were prepared by incipient wetness co-impregnation techniques and tested in oxidative ...
Narawich Mukda   +3 more
doaj   +1 more source

Dependence of the fractality of the silica gel on the method of sol emulsification

open access: yesЛитьë и металлургия, 2021
The article presents experimental data confirming the effect of capillary active substance (surfactants) and sedimentation stability on the final structure of the gel with stabilized silicic acid.
S. S. Tkachenko   +2 more
doaj   +1 more source

Silica-Sepiolite Nanoarchitectures

open access: yesJournal of Nanoscience and Nanotechnology, 2013
Silica-sepiolite heterostructured materials have been prepared as novel nanoarchitectures by generation of SiO2 nanoparticles (NPs) on the surface of the sepiolite fibrous clay mineral. The synthetic approach implies the use of organo-sepiolites dispersed in isopropanol to which is incorporated a selected silicon alcoxysilane, such as ...
Gomez-Aviles, Almudena   +4 more
openaire   +3 more sources

Non-isothermal Curing Kinetics and Heat Resistance of SCE-SiO 2 /PES-MBAE Composites

open access: yesJournal of Harbin University of Science and Technology, 2017
In order to study curing kinetics and heat resistance of supercritical silica(SCE-SiO 2 ) / polyether sulfone(PES) /diallyl bisphenol A(BBA) /bisphenol A diallyl oxide(BBE) /bismaleimide(MBMI),(BBA BBE/MBMI expressed in MBAE). The micro morphology of the
CHEN Yu-fei   +4 more
doaj   +1 more source

Effect of Chemical Composition on Microstructure and Hydrophobic Properties of SiO2-TiO2@PDMS Coating [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2023
We report a simple and practical approach for the easy production of superhydrophobic coatings based on TiO2-SiO2@PDMS. In this study, we used tetraethylorthosilicate (TEOS) and titanium tetraisopropoxide (TTIP) as a precursor for the sol-gel synthesis ...
amirreza Sazvar   +2 more
doaj  

Silaffins in Silica Biomineralization and Biomimetic Silica Precipitation [PDF]

open access: yesMarine Drugs, 2015
Biomineralization processes leading to complex solid structures of inorganic material in biological systems are constantly gaining attention in biotechnology and biomedical research. An outstanding example for biomineral morphogenesis is the formation of highly elaborate, nano-patterned silica shells by diatoms.
Lechner, Carolin, Becker, Christian
openaire   +4 more sources

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

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