Güncel Gönderiler: Kimya-Makale Koleksiyonu
Toplam kayıt 676, listelenen: 241-260
-
Chemometric approach to evaluate trace metal concentrations in some spices and herbs
(Elsevier Sci Ltd, 2012)Herbs (mint, thyme and rosemary) and spices (black pepper, chili pepper, cinnamon, cumin, sweet red pepper and turmeric) were analysed using atomic spectrometry and then subjected to chemometric evaluation in an attempt ... -
The investigation of complexation properties and hard-soft acid-base relationship between thiacrown ethers and metal ions
(Bentham Science Publ Ltd, 2016)Background: There are numerious work on thiacrown ethers that are utilized for binding metal ions. Usually, relative binding ratios have been reported for few selected cations in these works. This study aims to develop a ... -
Carbonic anhydrase inhibitors. Inhibition of the beta-class enzyme from the yeast Saccharomyces cerevisiae with anions
(Pergamon-Elsevier Science Ltd, 2008)The protein encoded by the Nce103 gene of Saccharomyces cerevisiae, a beta-carbonic anhydrase (CA, EC 4.2.1.1) designated as scCA, has been cloned, purified, characterized kinetically, and investigated for its inhibition ... -
Schiff base immobilized silica gel framework as an efficient sorbent for preconcentration of Pb and Zn ions in aqueous media
(Scientific Technical Research Council Turkey-Tubitak, 2016)A novel preconcentration method for Pb and Zn ions using a column packed with Schiff base modified silica gel is described. The method was based on the sorption of analytes on N,N'-bis(4-methoxysalicylidene)-1,3-propanediamine ... -
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 ...
