Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 724, listelenen: 261-280
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Characterization and rheological properties of kaolinite-silicon oil pastes
(Amer Chemical Soc, 2008)A description of experiments carried out to determine the effect of some parameters on the extrusion behavior of particulate pastes is given. The effects of particle size. solid/liquid ratio, temperature, shear rate, and ... -
Substituent effects on the ring-opening mechanism of lithium bromocyclopropylidenoids to allenes
(Amer Chemical Soc, 2008)The ring-opening reactions of lithium bromocyclopropylidenoids to allenes have been investigated computationally at the B3LYP/6-31 G(d) level of theory. Formally, two pathways can be considered: the reaction may either ... -
Electrical characterisation of poly(methyl methacrylate)/arachidic acid langmuir-blodgett films
(Elsevier Science Sa, 2008)A series of poly(methyl methacrylate) (PMMA) molecules with different molecular weights and arachidic acid has been used to fabricate alternate layer Langmuir-Blodgett (LB) films onto aluminum coated glass substrates and ... -
Functionalized sepiolite for heavy metal ions adsorption
(Elsevier Science Bv, 2008)Surface modification of clays has become increasingly important due to the practical applications of clays such as fillers and adsorbents. The surface modification of sepiolite with [3-(2-aminoethylamino)propyl]trimethoxysilane ... -
Characterization and adsorptive properties of activated carbon prepared from olive stones
(Parlar Scientific Publications (P S P),, 2014)Preparation of activated carbon from olive stones by H3PO4 chemical activation under different H3PO4 concentrations and calcination temperatures was carried out. The surface area of chemically modified activated carbon was ... -
In vitro inhibition of purified human carbonic anhydrase I and II by novel fluorene derivatives
(Soc Chemists Technologists Madeconia, 2014)In this study, 9-benzylidene-9H-fluorene-substituted urea (5a-p) and thiourea derivatives (5q-v) were synthesized and their inhibitory effects on the activity of human carbonic anhydrase (hCA) I and II were evaluated. hCA ... -
Synthesis, antioxidant and carbonic anhydrase I and II inhibitory activities of novel sulphonamide-substituted coumarylthiazole derivatives
(Taylor & Francis Ltd, 2016)New secondary benzenesulphonamide-substituted coumarylthiazole derivatives were synthesized and their inhibitory effects on purified carbonic anhydrase I and II were evaluated using CO2 as a substrate. The result showed ... -
Growth of CdS nanoparticles in Y- and Z-type Langmuir–Blodgett thin film using 1,3-bis-(p-iminobenzoic acid) indane
(Springer, 2012)Cadmium sulphide (CdS) nanoparticles were formed in 1,3-bis-(p-iminobenzoic acid)indane by exposing Cd2+ doped Y- and Z-type multilayered Langmuir-Blodgett (LB) films to H2S gas. The growth of CdS nanoparticles were monitored ... -
Kinetic and docking studies of cytosolic/tumor-associated carbonic anhydrase isozymes I, II and IX with some hydroxylic compounds
(Taylor & Francis Inc, 2016)A series of hydroxylic compounds (1-10, NK-154 and NK-168) have been assayed for the inhibition of three physiologically relevant carbonic anhydrase isozymes, the cytosolic isozymes I, II and tumor-associated isozyme IX. ... -
Evaluation of perylenediimide derivatives for potential therapeutic benefits on cancer chemotherapy
(Wiley-Blackwell, 2012)Perylene derivatives, known to have potential therapeutic benefits on particular cancer types as photosensitizers, may also function as small-molecule inhibitors with promising therapeutic value for diverse diseases. This ... -
Synthesis and evaluation of sulfonamide-bearing thiazole as carbonic anhydrase isoforms hCA I and hCA II
(Taylor & Francis Inc, 2016)Sulfonamide-bearing thiazole compounds were synthesized and their inhibitory effects on the activity of purified human carbonic anhydrase I and II were evaluated. Human carbonic anhydrase isoenzymes (hCA-I and hCA-II) were ... -
Description of a new Zodarion Walckenaer, 1826 from Turkey (Zodariidae; Araneae)
(Tubitak Scientific & Technical Research Council Turkey, 2014)A new species of Zodarion Walckenaer, 1826 is described based on material collected in the Marmara region of Turkey. Morphological and diagnostic characters and illustrations of the genitalia of both sexes are presented, ... -
Novel and validated spectrophotometric matrix matching method for simple and rapid determination of chromium in oily media
(Office Spectroscopy & Spectral Analysis,, 2016)N,N'-bis(4-methoxysalicylidene) ethylenediamine is proposed as analytical reagent for the direct determination of chromium in original matrix of liquid oils. The method is based on the complexation of N, N'-bis ... -
Determination of rare earth elements in waters by inductively coupled plasma optical emission spectrometry after preconcentration with 6-(2-thienyl)-2-pyridinecarboxaldehyde functionalized Amberlite XAD-4 resin
(Iwa Publishing, 2014)A new method has been developed for the determination of rare earth elements (REEs) (Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) in water samples based on preconcentration with a mini-column packed with ... -
Is there a relation between genetic susceptibility with cancer? A study about paraoxanase (PON1) enzyme activity in breast cancer cases
(Taylor & Francis Ltd., 2016)Human serum paraoxonase 1 (PON1, EC 3.1.1.2) is a high density lipoprotein (HDL)-associated antioxidant enzyme that not only decreases oxidative stress, but it is also implicated in development of many cancers. Genetic ... -
Inhibition kinetic and mechanism of polyphenol oxidase from various sources by diethyldithiocarbamic acid
(Wiley-Blackwell, 2008)Inhibition kinetics and mechanism of polyphenol oxidases (PPO) partially purified from various sources such as Thymbra spicata L. var. spicata and Ocimum basilicum L., and of mushroom PPO bought from Sigma by diethyldithiocarbamic ... -
Biosorption of methylene blue from aqueous solutions by hazelnut shells: Equilibrium, parameters and isotherms
(Springer, 2008)This paper presents a study on the batch adsorption of a basic dye, methylene blue (MB), from aqueous solution onto ground hazelnut shell in order to explore its potential use as a low-cost adsorbent for wastewater dye ... -
The effect of sodium tetraborate on antioxidant enzymes under in vitro conditions
(Parlar Scientific Publications (P S P),, 2014)Herein, the effects of sodium tetraborate on antioxidant enzyme activities from human blood cells under in vitro conditions were studied. Red blood cells were exposed to different concentrations of sodium tetraborate. ... -
Synthesis, structure-activity relationships and biological activity of new isatin derivatives as tyrosinase ınhibitors
(Bentham Science Publ Ltd, 2014)A newly series of isatin derivatives (6a-t) containing alkyl/aryl urea groups were synthesized and their inhibitory effects on the diphenolase activity of banana tyrosinase were evaluated. Tyrosinase was purified from ... -
Adsorption kinetics and mechanism of maxilon blue 5G dye on sepiolite from aqueous solutions
(Elsevier Science Sa, 2008)The use of sepiolite for the removal of maxilon blue 5G from aqueous solutions at different contact times, stirring speeds, initial dye concentrations, pHs, ionic strengths and temperatures was investigated. The adsorption ...
