نتایج جستجو برای: methyl red magnetic nanoparticlescentral composite designremovalpreconcentration
تعداد نتایج: 708486 فیلتر نتایج به سال:
A mathematical model for blood flow in narrow capillaries under the effect of transverse magnetic field has been investigated. It is assumed that there is a lubricating layer between red blood cells and tube wall. The transient flow of the fit red blood cell surrounded by plasma annulus in the narrow capillary is considered. The analysis of fluid flow between red cell and tube wall, when the ce...
Introduction: Increased consumption of energy drinks has raised concerns about their effects on dental restorations. This study assessed the effects of two energy drinks on the surface microhardness of methacrylate and silorane-based composites after 1-week and 1-month periods. Materials & Methods: In this in-vitro study, 90 cubic samples were prepared from Filtek P90, Filtek Z250 and Filtek Z...
absorption spectra of the composite sol-gel (blue solid) and pure photochromic sol-gel (black solid). The open-form ∆OD for composite solgel (red dash). The inset is the chemical structure of the composite molecule with donor moiety (bottom red) and acceptor moiety (top blue). (d) The thermally reversing photokinetic measurement of the open-form ∆OD (460nm) of the composite sol-gel, recovering ...
• PANI-TNT nanocomposite was used for modification of pure PVDF membrane. Phase inversion method to develop PVDF-PANI-TNT nanofiltration membranes. Developed membranes show excellent self-cleaning properties in filtration processes. Water flux, hydrophilicity and antifouling improved by adding PANI-TNTs. In this research article, the (polyvinylidene fluoride)–PANI (polyaniline)–titanium nanotub...
A diarrheagenic toxin from culture extracts of Aspergillus wentii Wehmer isolated from weevil-damaged Chinese chestnuts was identified as emodin (2-methyl-4,5,7-trihydroxyanthraquinone). The orange-red, crystalline toxin (mp 255 to 257 C) showed ultraviolet absorption maxima in ethyl alcohol at 223, 250, 267, 290, and 442 nm, and infrared absorption maxima at 3,400 cm-1 (OH), 1,635, and 1,625 C...
Six ionic liquid (IL)-modified dyes were synthesized and characterized. Compared to the methyl red and methyl orange, these IL-modified [MR](-)- or [MO](-)-based dyes exhibit lower melting points and enhanced solubility, and can be used as sensitive indicators towards free proton in both aqueous and non-aqueous solutions. This work also supplies a new concept of developing novel modified materi...
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