نتایج جستجو برای: nanosilica
تعداد نتایج: 582 فیلتر نتایج به سال:
This study evaluates the adsorption of bisphenol-A (BPA) from aqueous solutions using nanosilicaobtained from rice husk. Nanosilica (79 nm) was extracted from acid and thermal treated rice huskwaste. The rice husk nanosilica (RHS) was fully characterized through X-Ray DiffractionSpectroscopy (XRD), Scanning Electron Microscopy (SEM), X-Ray Fluorescence Spectroscopy(XRF) and Fourier Transmittanc...
Amorphous silica nanoparticles (nSP) have been used as a polishing agent and/or as a remineralization promoter for teeth in the oral care field. The present study investigates the effects of nSP on osteoclast differentiation and the relationship between particle size and these effects. Our results revealed that nSP exerted higher cytotoxicity in macrophage cells compared with submicron-sized si...
The article deals with the preparation, properties and the usage of polymer barrier films. The problem of exfoliation and dispersion of the filler in the polymer matrix and mechanical properties of barrier films is discussed. This problem is connected with the use of nanofiller either in the polymer matrix or on the surface of prepared films. Together the evaluating comparison of used nanofille...
Trigonella foenum-graecum (fenugreek) is an important medicinal plant, well known for its anti-inflammatory properties. However, the underlying cellular and molecular mechanisms of its action remain largely unknown. The apoptosis associated speck like protein containing a caspase recruitment domain (CARD) (ASC) is central to inflammatory and cell death pathways in innate and adaptive immunity. ...
The use of by-products from the food industry for development bioplastics represents an outstanding strategy in meeting current demands material circularity. In this work, films based on chitosan (CH) and water kefir grain (WKG) biomass incorporated with different concentrations (3%–10% w/w) nanosilica (SiO2) were developed first time. key properties required packaging assessed. There are no st...
Nanosilica was extracted from rice husk, which locally collected the Iraqi mill at Al-Mishikhab district in Najaf Governorate, Iraq. The precipitation method used to prepared powder husk ash, after treating it thermally 700°C, followed by dissolving silica alkaline solution and getting a sodium silicate solution. Two samples of final were study effect filtration on purity sample X-ray fluoresce...
Abstract Synthesis of rice husk nanosilica was carried out using hydrothermal methods at various temperatures and times their characteristics. The stages synthesis include sample preparation, synthesis, reaction temperature variations used are 120°C, 150°C, 180°C, the time is 2 hours, 4 6 hours then titrated sulfuric acid until it reaches pH 7-8. XRF analysis results showed silica (SiO2) conten...
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