Güncel Gönderiler: Kimya-Makale Koleksiyonu
Toplam kayıt 676, listelenen: 81-100
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Preparation of water-soluble amorphous erbium borate (ErBO3.3H(2)O) nanoparticles with positive charge
(Springer International Publishing Ag, 2020)We report a simple one-step protocol for the preparation of nearly monodisperse and highly water-soluble erbium borate nanoparticles through a co-precipitation method. Erbium ions were precipitated by boric acid/sodium ... -
Synthesis of PMMA-HoVO4 nanocomposites by emulsifier-free emulsion polymerization: radical effects
(Sciendo, 2020)Poly(methyl methacrylate)-holmium orthovanadate (PMMA-HoVO4) nanocomposites were synthesized using emulsifier-free emulsion polymerization system in two ways. In the first one, the HoVO4 nanoparticle dispersion was added ... -
Developing of buffer-precipitation method for lead metaborate (Pb(BO2)(2)center dot H2O) nanostructures
(Sciendo, 2020)Amorphous lead metaborate (Pb(BO2)(2)center dot H2O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH ... -
The phenolic contents, antioxidant and anticholinesterase activity of section Amaracus (Gled.) Vogel and Anatolicon Ietsw. of Origanum L. species
(Elsevier, 2020)Origanum boissieri Ietsw., O. saccatum P.H.Davis, O. solymicum P.H.Davis and O. ayliniae Dirmenci & T.Yazici belonging to sect. Amaracus (Gled.) Vogel, O. sipyleum L. and O. hypericifolium O.Schwarz & P.H.Davis belonging ... -
Synthesis of thiol-glycol-functionalized carbon nanotubes and characterization with FTIR, TEM, TGA, and NMR technics
(Springer International Publishing Ag, 2020)Carbon nanotube is one of the important topics of interest in the nanotechnology science. Many scientists have been interested in surface-modified nanotubes for decades. In this study, multi-walled carbon nanotubes (MWCNTs) ... -
Investigation of seasonal and cooking effects on the bioaccessibility of elements in most consumed fish in Turkey
(Central Fisheries Research Inst, 2020)An in-vitro gastrointestinal extraction method has been performed to determine the bioaccessibility of As, Co, Cu, Fe, Mn, Ni, Se and Ti in the most consumed fish (anchovy, bream, sardines, horse mackerel, seabass and ... -
Cost-effective voltammetric determination of boron in dried fruits and nuts using modified electrodes
(Elsevier Sci Ltd, 2020)Cost effective, simple and accurate two voltammetric methods for determination of boron in hazelnut, peanut, almond, raisin, prune and date samples were described. Metal nanoparticles-carbon nanotube modified glassy carbon ... -
Synthesis, characterization, and their some chemical and biological properties of PVA/PAA/nPS hydrogel nanocomposites: Hydrogel and wound dressing
(Sage Publications, 2020)The nanocomposite hydrogels were prepared by dispersing of the nanopomegranate seed particles into poly(vinyl alcohol)/poly(acrylic acid) blend matrix in an aqueous medium by the solvent casting method. These hydrogels ... -
Paraoxonase activity and phenotype distribution in patients with chronic obstructive pulmonary disease
(AVES, 2020)Objective: Paraoxonase 1 (PON1) and arylesterase (ARE) enzymes have an important role in the prevention of oxidative stress which is related to the pathogenesis of chronic obstructive pulmonary disease (COPD). PON1 levels ... -
The effects of gastric juice acidity on bioaccessibility of some elements in selected foods
(Academic Press Inc Elsevier Science, 2020)The pH value of gastric juice changes between 1.5 and 3.5 in healthy people but the upper pH range can be as higher as 7 in the presence of a gastric ulcer or different gastric cancers. The effects of the acidity of gastric ... -
Preparation, characterization and adsorption kinetics of methylene blue dye in reduced-graphene oxide supported nanoadsorbents
(Elsevier, 2020)Reduced-graphene-oxide-supported Ni nanoadsorbents (Ni@rGO) were synthesized in this work to remove methylene blue (MB) dye from aqueous solutions using ultrasonic process method. These synthesized nanoadsorbents were ... -
N,N '-Bis(l-alaninetert-butylester)-3,4:9,10-perylene diimide molecule for volatile organic vapor detection
(Royal Soc Chemistry, 2020)Langmuir-Blodgett (LB) thin films were prepared using anN,N '-bis(l-alaninetert-butylester)-3,4:9,10-perylene diimide derivative to determine the optimum thin film forming conditions and their sensing properties towards ... -
Synthesis, in vitro inhibition effect of novel phthalocyanine complexes as carbonic anhydrase and paraoxonase enzyme inhibitors
(World Sci Publ Co Inc, 2020)The preparation and assessment of carbonic anhydrase and paraoxonase enzyme inhibition properties of 3-(2-(5-amino-4-(4-bromophenyl)-3-methyl-1H-pyrazol-1-yl)ethoxy)phthalonitrile (2) and its nitrogen-containing non-peripheral ... -
Monitoring of reduction reaction of 2-((phenylimino)methyl)phenol compound with sodium borohydride in solution by infrared spectroscopy
(Taylor and Francis Ltd, 2020)In this study, an imine compound 2-((phenylimino)methyl)phenol was synthesized by the reaction of salicylaldehyde and aniline for in situ monitoring of reduction with sodium borohydride. The reduction of C = N double bond ... -
Synthesis of new series of thiazol-(2(3H)-ylideneamino)benzenesulfonamide derivatives as carbonic anhydrase inhibitors
(Wiley, 2020)Human carbonic anhydrase I and II isoenzymes (hCA I and II) are important metabolic enzymes. In this study, a new series of thiazol-(2(3H)-ylideneamino)benzenesulfonamide derivatives were synthesized and also some inhibition ... -
Equilibrium formation of stable all-silicon versions of 1,3-cyclobutanediyl
(Wiley V C H Verlag GMBH, 2020)Main group analogues of cyclobutane-1,3-diyls are fascinating due to their unique reactivity and electronic properties. So far only heteronuclear examples have been isolated. Here we report the isolation and characterization ... -
Water soluble coumarin quaternary ammonium chlorides: synthesis and biological evaluation
(Wiley V C H Verlag GMBH, 2020)In the present study, coumarin-bearing three pyridinium and three tetra-alkyl ammonium salts were synthesized. The compounds were fully characterized by(1)H- and(13)C-NMR, LC/MS and IR spectroscopic methods and elemental ... -
Q192R polymorphism in the PON1 gene and nasal polyp in a Turkish population
(Wiley, 2020)The pathogenesis of nasal polyps is not completely understood. Oxidative damage contributes to polyp formation in the nasal mucosa. The paraoxonase 1 (PON1) enzyme is an important liver enzyme with high antioxidant activity. ... -
Characterization and thermal kinetic analysis of PMMA/modified-MWCNT nanocomposites
(Elsevier Sci Sa, 2020)This study represents the processing, characterization and thermal properties of poly(methylmethacrylate)/multi-walled carbon nanotube (PMMA/MWCNT) and PMMA/MWCNT-OH nanocomposites prepared using the solution casting method. ... -
Activated carbon synthesis from tangerine peel and its use in hydrogen storage
(Elsevier Sci Ltd, 2020)Activated carbon samples were synthesized by chemical and physical activations of tangerine peel. The activated carbons were characterized via using Fourier Transform Infrared-Attenuated Total Reflectance spectroscopy ...
