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Showing 1 to 20 of 194 for “"Cu(II)"”.
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Egy EDTA származék ligandum előállítása és Cu(II)-komplexének vizsgálata
… mint az EDTA-é. Emiatt nem volt meglepő, hogy a Cu(II)-komplex stabilitási állandója is kisebb, mint a megfelelő EDTA komplexé. A jobb összehasonlíthatóság kedvéért kiszámítottuk továbbá a pCu értékeket is a két komplexre, ami megint csak azt mutatta, hogy a [Cu(BCPDA)]2–-komplex kisebb …
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Aspergillus fajok Cu(II) toleranciájának vizsgálata, Aspergillus terreus fonalas gombával
Aspergillus fajok Cu(II) toleranciájának vizsgálata, Aspergillus terreus fonalas gombával. A munkánk során réz-ionok tápközegbe juttatásával próbáltuk a mangán-ionok negatív hatásait elnyomni és ezért teszteltük a réz toleranciát szilárd és folyékony tápközegben is, amelyhez a nemzetség egyik …
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Bystander-Effekt des Peroxynitrit und der toxische Effekt von Cu(II)-SOD
… reagiert. <br>Für die Apoptoseinduktion durch Cu-SOD in Kombination mit Glucoseoxidase und Myeloperoxidase bei nicht-transformierten Zellen muß das aktive Cu-SOD-Enzym vorliegen. Die Apoptoseinduktion tritt nicht auf, wenn Mn++ anstatt Cu++ im aktiven Zentrum des Enzyms ist, sie tritt nicht …
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Synthesis, structure and properties of novel Cu(II)-based metal-organic frameworks
… and release of liquids, gases and small molecules in solution. 4,5 Within this general definition, a class of materials that has seen its importance grow exponentially in the past two decades has been that of the Metal-Organic Frameworks, or MOFs. These materials have shown a lot of …
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Interaction of Cu(II) ion with ribonuclease A in the native and unfolded states
<p>The binding of Cu(II) ion to ribonuclease A at various sodium perchlorate concentrations was studied as a function of Cu(II) ion concentration and pH using a Cu(II) ion electrode. Spectrophotometric studies of the same systems were also carried out. The copper binding studies were carried out at …
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In vitro studies of dermally absorbed Cu(II) tripeptide complexes as potential anti-inflammatory drugs
Copper(II) complexes have anti-inflammatory properties which can alleviate the symptoms of rheumatoid arthritis (RA) and thus control the progression of the disease. In this study two tripeptides, namely sarcosyl-L-leucyl-phenylalanine (Sar-Leu-Phe) and glycyl-L-leucyl-phenylalanine (Gly-Leu-Phe) …
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The solvent extraction of CU (II) from chloride solutions with certain non-chelating nitrogen donor ligands
… for dimers and trimers obtained. Copper (II), Nickel (II) and Cobalt (II) are extracted by a solvating mechanism in which only the neutral MCl2 species is extractable. This reaction is largely independent of pH. Studies were also carried out on the use of the commercial reagent ACORGA …
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Investigation of the autocatalytic Cu(II) reduction processes in the systems with natural polyhydroxylic compounds as ligands /
… surface roughness factors, anodic oxidation currents of formaldehyde. A use of ultrasound for electroless copper plating systems change speeds. Depending on the choice of copper plating system and ultrasonic frequency, plating rate can decrease or may increase up to 5 times and can reach high …
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Borylations and Silylations of Alkenyl and Alkynyl Carbonyl Compounds Employing a Mild and Environmentally Friendly Cu(II) Catalyst
… as well as origin of diastereoselectivity are discussed.
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Effect of surfactants on the sorption and transport of Cu(II) in a sandy soil : batch, column experiments and modeling
… the sorption processes and transport behavior of Cu(II) in a sandy soil in the presence of surfactants. SDS (sodium dodecyl sulfate) and Triton X-100 were chosen as representatives of an anionic surfactant and a nonionic surfactant, respectively. Results showed that the anionic surfactant (SDS) …
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Direct oxidative Ammonia-Ammonium salt leaching of sphalerite concentrate from the Gamsberg Mine and study of the catalytic effect of Cu(II) on Zinc extraction
… concentrate consists of 43.7 wt.% Zn, 0.17 wt.% Cu, 8.3 wt.% Fe, 29.1 wt.% S, 3 wt.% Pb, 2.4 wt.% Mn, and 5.4 wt.% Si, with mineralogical components including sphalerite (81.2 wt.%), galena (3.2 wt.%), quartz (9.3 wt.%), mica (2 wt.%), clinochlore (1.7 wt.%), and plagioclase (2.6 wt.%). This …
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ΣΥΜΠΛΟΚΕΣ ΕΝΩΣΕΙΣ ΤΩΝ CO(II), NI(II), CU(II), ZN(II), PD(II), ΚΑΙ PT(II) ΜΕ ΥΠΟΚΑΤΑΣΤΑΤΕΣ ΠΟΥ ΠΕΡΙΕΧΟΥΝ ΔΕΥΤΕΡΟΤΑΓΗ ΑΜΙΔΙΚΗ ΟΜΑΔΑ, ΑΡΩΜΑΤΙΚΗ ΚΑΡΒΟΞΥΛΙΚΗ ΟΜΑΔ...
… BOND CONSTITUTE AN IMPORTANT ART OF A NUMBER OF CURRENT CHEMICAL PROBLEMS. RECENT REVIEWS, PAPERS AND PROCEEDINGS OF INTERNATIONAL CONFERENCES CLEARLY SHOW THAT RESEARCH INTEREST IS CENTRED ON THESTRUCTURE AND STABILITY OF METAL ION COMPLEXES WITH AMIDES, LIGOPEPTIDES, PROTEINS AND RELATED …
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Ratiometric copper(II) indicators based on poly(n-isoproprylacrylamide) and fluorescence resonance energy transfer
… to ratiometric fluorescence detection of Cu(II) ions was devised by copolymerizing N-isopropylacrylamide with small percentages of bipyridine and amine monomers. The copolymer was divided into two portions. The amine group on one portion was functionalized with AlexaFluor555 (donor …
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Μελέτη αποδέσμευσης ιόντων δισθενούς χαλκού από συμπολυμερή τύπου κτένας
Διερευνήθηκε η δέσμευση/αποδέσμευση ιόντων Cu(II) ή/και αντίθετα φορτισμένων επιφανειοδραστικών ενώσεων από συμπολυμερή τύπου κτένας. Ο κεντρικός σκελετός ήταν το πολυ(ακρυλικό νάτριο), PANa, ενώ οι πλευρικές αλυσίδες ήταν το Πολυ(Ν,Ν-διμεθυλακρυλαμίδιο) και το πολυ(Ν-Ισοπροπυλακρυλαμίδιο). Η …
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Development of copper peptide complexes as anti-Inflammatory drugs
… rheumatoid arthritis (RA). The present study focuses on the design of new drugs that could be used to change the bioavailability of copper and hence alleviate inflammation. The ligands chosen were sarcosyl-L-histidyl-L-lysine, sarcosyl-Llysyl- L-histidine, sarcosyl-L-histidyl-L-histidine, …
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