Güncel Gönderiler: Kimya-Makale Koleksiyonu
Toplam kayıt 676, listelenen: 101-120
-
The effects on antioxidant enzymes of PMMA/hydroxyapatite nanocomposites/composites
(Elsevier Sci Inc, 2020)In this study, polymer-ceramic nanocomposites and/or composites were prepared by solution removal method using poly(methylmethacrylat) (PMMA) and nano-hydroxyapatite (nHA). They were characterized using X-ray diffraction ... -
Thermal and kinetic properties of poly(vinylacetate)/modified MWCNT nanocomposites
(Taylor and Francis Inc, 2020)The aims of this study were to improve the low thermal stability of poly(vinylacetate) (PVAc) polymer by forming its nanocomposite products according to solvent casting method with multi-walled carbon nanotube (MWCNT) ... -
The halogen effect on the ring-opening of germacyclopropylidenoids to germaallenes
(ACG Publications, 2019)Density functional theory calculations were employed to explore the ring-opening reaction mechanisms of mono germanium analogues of cyclopropylidenoids via Doering-Moore-Skattebol method. The theoretical findings revealed ... -
Synthesis, structural characterization, spectroscopic properties, and theoretical investigation of siderol acetate
(Maik Nauka, 2019)In the present study, siderol acetate (1) was synthesized from siderol isolated from endemic Sideritis species, then its chemical structure was determined by using various spectroscopic methods (FT-IR, H-1 NMR, and C-13 ... -
Synthesis of carbazole bearing pyridopyrimidine-substituted sulfonamide derivatives and studies their carbonic anhydrase enzyme activity
(Wiley, 2019)The synthesis of carbazole containing pyridopyrimidine-substituted sulfonamide derivatives (3a-i) and their inhibitory effects on human carbonic anhydrase (hCA) I and II were studied. Spectral data and elemental analysis ... -
Solid phase extraction and preconcentration of some metal ions using Schiff base immobilised silica gel followed by ICP-OES
(Taylor and Francis Ltd, 2019)In this study, a simple and efficient solid phase extraction procedure was developed for simultaneous separation and preconcentration of Ba, Cd, Co, Cu, Mn and Ni. The methodology was based on preconcentration of the target ... -
Magnetic nanocomposites decorated on multiwalled carbon nanotube for removal of Maxilon Blue 5G using the sono-Fenton method
(Nature Publishing Group, 2019)Herein, multiwalled carbon nanotube-based Fe3O4 nano-adsorbents (Fe3O4@MWCNT) were synthesized by ultrasonic reduction method. The synthesized nano-adsorbent (Fe3O4@MWCNT) exhibited efficient sonocatalytic activity to ... -
Equilibrium, kinetics, and thermodynamic of adsorption of enzymes on diatomite clay materials
(Springer, 2019)In adsorption experiments, enzymes and diatomite clay minerals that have been used lately are of great importance due to their biological and physicochemical properties. For this purpose, in this study, the adsorption and ... -
Emulsification liquid-liquid microextraction method based on a deep eutectic solvent for separation and preconcentration of lead from environmental water samples
(Iwa Publishing, 2019)In this paper, a novel emulsification liquid-liquid microextraction method based on deep eutectic solvents (DESs) for the preconcentration of lead from water samples and its determination by flame atomic absorption ... -
Development of carbazole-bearing pyridopyrimidine-substituted urea/thiourea as polyphenol oxidase inhibitors: synthesis, biochemistry, and theoretical studies
(Taylor and Francis Ltd, 2019)Polyphenol oxidase (Tyrosinase, PPO) has received considerable attention, since it is the key enzyme in melanin biosynthesis. In this study, we investigated prepared novel carbazole-containing pyridopyrimidine-substituted ... -
Inhibition of paraoxonase 1 by coumarin-substituted N-heterocyclic carbene silver(I), ruthenium(II) and palladium(II) complexes
(Wiley, 2019)We synthesized three coumarin-substituted benzimidazolium chlorides and their silver(I), ruthenium(II) and palladium(II) N-heterocyclic carbene (NHC) complexes. All compounds were characterized using appropriate spectroscopic ... -
Assessment of sequential extraction methods for the prediction of bioavailability of elements in plants grown on agricultural soils near to boron mines in Turkey
(Elsevier Science BV, 2019)Two sequential extraction methods (BCR sequential extraction method and a newly proposed sequential extraction method) were used to evaluate the bioavailability of the elements from the contaminated soils to different ... -
Voltammetric determination of molybdenum using polymer film modified pencil graphite electrodes
(Taylor & Francis Inc, 2019)A new indirect voltammetric method for the determination of molybdenum in water samples and food supplements using various polymer film modified pencil graphite electrodes (PFMPGEs) was described. Poly Eriochrome black T ... -
Polyethylene glycol modified ervo4 nanocrystals: Magnetic and optical properties
(Amer Scientific Publishers, 2019)Spindle-like ErVO4 nanocrystals were synthesized by precipitation in the presence of polyethylene glycol. Structural, optical and magnetic properties of as-prepared ErVO4 nanoparticles with and without polyethylene glycol ... -
The kinetic parameters of adsorption of enzymes using carbon-based materials obtained from different food wastes
(Springer, 2019)In this study, adsorption of catalase enzyme onto activated carbon obtained from apple shell, kinetic parameters, and activation data of adsorption process was investigated. Temperature (15, 25, 36.5, and 45 degrees C), ... -
Equilibrium, kinetics and thermodynamics of bovine serum albumin from carbon based materials obtained from food wastes
(Springer, 2019)In this research, the adsorption of bovine serum albumin (BSA) onto activated carbon (AC) obtained from apple bark was carried out and the thermodynamic parameters of adsorption process were investigated. Besides, the ... -
Thermodynamics, kinetics, and adsorption properties of biomolecules onto carbon-based materials obtained from food wastes
(Springer, 2019)In this research, adsorption of Candida rugosa lipase enzyme (CRLE) onto activated carbon obtained from apple bark was carried out, and the thermodynamic parameters of adsorption process were investigated. The surface ... -
LaVO4, LaPO4 and LaBO3: Synthesis, rietveld refinement, and comparison of optical properties
(Natl Inst Optoelectronics, 2019)Rare earth metals luminescent materials have been practically applied in almost all devices from cathode ray tubes to coating materials. Lanthanum containing samples of orthovanadate, orthophosphate and orthoborate (LaVO4, ... -
Exploring prospective chemistry teachers' perceptions of precipitation, conception of precipitation reactions and visualization of the sub-microscopic level of precipitation reactions
(Royal Soc Chemistry, 2019)In this study, how prospective chemistry teachers (PCTs) perceive precipitation and conceptualize precipitation reactions at the symbolic level was explored. Further, it was of interest to identify PCTs' visualization of ... -
Association of human serum paraoxonase-1 with some respiratory drugs
(Wiley, 2019)In this study, we investigated the effects of certain respiratory drugs, which are mainly used on human serum paraoxonase-1 (hPON1; EC 3.1.8.1). hPON1 was purified from human serum, with 354.91 fold and 45% yield by using ...
