Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 724, listelenen: 281-300
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Synthesis and in vitro inhibition effect of new pyrido[2,3-d] pyrimidine derivatives on erythrocyte carbonic anhydrase i and ii
(Hindawi Publishing Corporation, 2014)In vitro inhibition effects of indolylchalcones and new pyrido[2,3-d] pyrimidine derivatives on purified human carbonic anhydrase I and II (hCA I and II) were investigated by using CO2 as a substrate. The results showed ... -
Determination of copper(II) in natural waters by extraction using n-o-vanillidine-2-amino-p-cresol and flame atomic absorption spectrometry
(Taylor & Francis Inc, 2014)A simple and accurate solvent extraction method was developed for the separation and preconcentration of trace levels of copper(II) in water using N-o-vanillidine-2-amino-p-cresol prior to its determination using flame ... -
Comparison of hydratase, esterase activities and inhibition manner of mutant Asn67/Ile and Leu204/Ser of human CAII
(Blackwell Publishing, 2008)Carbonic anhydrases (CAs; also known as carbonate dehydratases EC 4.2.1.1) are a family of enzymes which catalyze the reversible reaction from H2O and CO2 to HCO3 - ions. Carbonic anhydrases are ubiquitous metalloenzymes ... -
Inhibition studies on mutant Phe91Asn human carbonic anhydrase I (HCA I) gene
(Wiley-Blackwell, 2008)Carbonic anhydrases (CAs; carbonate dehydratases EC 4.2.1.1) are ubiquitous metalloenzymes present in prokaryotes and eukaryotes that and encoded by four evolutionarily different gene families. In mammals, 15 a-CA isozymes ... -
Characterization of mendo (Antriscus nemorosa) and Mentha species polyphenol oxidase
(Blackwell Publishing, 2008)Introduction: Polyphenol oxidases (PPO) (EC 1.14.18.1) are very important enzymes in food industry for their involvement in the enzymatic browning of edible plants. Herby cheese, a semi-hard, salty and herb added, is ... -
Characterization of polyphenoloxidase from wild pear (Pyrus elaegrifolia)
(Wiley, 2008)Wild pear polyphenoloxidase (PePPO) was extracted and purified using a Sepharose 4B-L-tyrosine-p-amino benzoic acid affinity column. Optimum conditions for pH, temperature and heat inactivation were determined. At the ... -
Differential in vitro inhibitory effects of anticancer drugs on tumor-associated carbonic anhydrase isozymes CA IX and CA XII
(Prous Science, 2008)Carbonic anhydrase IX (CA IX) and, to a lesser extent. carbonic anhydrase XII (CA XII) are highly overexpressed in hypoxic tumors. In this study, the inhibitory effects of 11 different anticancer drugs including paclitaxel, ... -
Removal of copper ions from aqueous solutions by hazelnut shell
(Elsevier Science Bv, 2008)There is a great potential of woody hazelnut shell to use in some applications. Sorption studies are one of these. For this reason in this paper, batch adsorption of Cu2+ ions onto hazelnut shells was studied. The capacity ... -
Removal of copper ions from aqueous solutions by kaolinite and batch design
(Elsevier Science Bv, 2008)The removal of copper ions from aqueous solutions by kaolinite was investigated by using a batch-type method. Effects of factors such as pH, ionic strength, temperature, acid-activation and calcination on copper adsorption ... -
Adsorptive cathodic stripping voltammetric determination of antimony in the presence of copper and bismuth by using hematoxylin
(Parlar Scientific Publications (P S P),, 2014)This study describes a new adsorptive cathodic stripping voltammetric method using hematoxylin as complexing reagent for determination of antimony in the presence of Cu(II) and Bi(III). The method is based on the accumulation ... -
In vitro inhibition effect of some coumarin compounds on purified human serum paraoxonase 1 (PON1)
(Taylor & Francis Inc, 2016)Human serum paraoxonase 1 (PON1; EC 3.1.8.1) is a high-density lipoprotein associated, calcium-dependent enzyme that hydrolyses aromatic esters, organophosphates and lactones and can protect the low-density lipoprotein ... -
Coumarin or benzoxazinone based novel carbonic anhydrase inhibitors: synthesis, molecular docking and anticonvulsant studies
(Taylor & Francis Inc, 2016)Among many others, coumarin derivatives are known to show human carbonic anhydrase (hCA) inhibitory activity. Since hCA inhibition is one of the underlying mechanisms that account for the activities of some antiepileptic ... -
Acid modified diatomaceous earth - A sorbent material for thin layer chromatography
(Preston Publ Inc, 2008)Natural diatomaceous earth (DE) is modified by flux calcination and refluxing with acid. To characterize natural DE, modified DE’s [flux calcinated (FC)DE and FCDE-I] and silica gel 60GF254 (Si-60GF254) are analyzed ... -
Phthalimide thin film for methanol vapor detection
(Amer Scientific Publishers, 2008)The thin film and sensing properties of a novel (N-phthalimido)-p-aminobenzoic acid (FIABA) compound against methanol vapor is investigated using Atomic Force Microscopy (AFM) and Surface Plasmon Resonance (SPR). AFM results ... -
Element fractionation analysis for infant formula and food additives by inductively coupled plasma optical emission spectrometry
(Wiley, 2014)Fractionation analyses are essential to investigate the effects of dietary constituents on bioavailability of elements. A sequential separation procedure has been applied for elemental fractionation patterns in infant ... -
Synthesis and crystal structure of dicobalt nickel orthoborate, Co2Ni(BO3)(2)
(Elsevier Science Sa, 2008)A new binary metal borate compound, dicobalt nickel orthoborate, Co2Ni(BO3)(2) has been successfully synthesized by thermally-induced solid-state chemical reaction at 900 degrees C between the initial reactants of ... -
Flow injection determination of aluminium by spectrofluorimetric detection after complexation with N-o-vanillidine-2-amino-p-cresol: The application to natural waters
(Elsevier Science Bv, 2008)An on-line flow injection spectrofluorimetric method for the direct determination of aluminium in water samples is described. The method is based on the reaction of aluminium with N-o-vanillidine-2-amino-p-cresol (OVAC) ... -
Characterization and adsorption properties of chemically modified sepiolite
(Amer Chemical Soc, 2008)Modification of sepiolite clay has been performed using triethoxy-3-(2-imidazolin-1-yl)propylsilane in the presence of toluene solution. The modified material was characterized by FTIR spectroscopy, XRD, and simultaneous ... -
Synthesis and carbonic anhydrase inhibitory properties of tetrazole- and oxadiazole substituted 1,4-dihydropyrimidinone compounds
(Informa Healthcare, 2014)A new series of tetrazole-, oxadiazole-and cyanosubstituted 1,4-dihydropyrimidinone compounds were synthesized, and their inhibitory effects on the activity of purified human carbonic anhydrase (hCA) I were evaluated. ... -
Synthesis and carbonic anhydrase inhibitory properties of 1,3-dicarbonyl derivatives of methylaminobenzene-sulfonamide
(Informa Healthcare, 2014)1,3-Dicarbonyl derivatives of methylaminobenzene-sulfonamide were synthesized and their inhibitory effects on the activity of purified human carbonic anhydrase (hCA) I and hCA II were evaluated. hCA I and hCA II from human ...
