Yazar "Köse, Dursun Ali" için Fen Edebiyat Fakültesi listeleme
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Acesulfame complex compounds of some lanthanide group metal cations. Synthesis and characterization
Zeybel, Leriman; Köse, Dursun Ali (Elsevier, 2021)Some rare earth metal cations (Eu3+, Tb3+, HO3+ , Er3+ and Yb3+) of the acesulfame ligand and complex compounds were synthesized by hydrothermal method. Elemental analysis, infrared spectroscopy, mass analysis and solid-state ... -
Adsorption of Victoria Blue R (VBR) dye on magnetic microparticles containing Fe(II)–Co(II) double salt
Erol, Kadir; Köse, Kazım; Köse, Dursun Ali; Sızır, Ümit; Tosun Satır, İlknur; Uzun, Lokman (Taylor and Francis Inc., 2016)Magnetic microparticles have many applications in various areas today. The aim of this study was to develop hydrophobic magnetic microparticles as an alternative to traditional methods for high capacity and low cost removal ... -
Affinity purification lipase from wheat germ: comparison of hydrophobic and metal chelation effect
Köse, Kazım; Erol, Kadir; Köse, Dursun Ali; Evci, Emre; Uzun, Lokman (Taylor and Francis Ltd., 2017)Cryogels are used quite a lot nowadays for adsorption studies as synthetic adsorbents. In this study, lipase enzyme (obtained from Candida cylindracea) adsorption capacity of poly(2-hydroxyethyl methacrylate-N-methacrylo ... -
Bazı metal organik kafes yapılı bileşiklerin hidrojen depolama performanslarının incelenmesi
Hidrojenin bilinen depolama sistemlerinden farklı olarak depolama ortamlarında kimyasal olarak veya zayıf van der Waals etkileşimleriyle fiziksel olarak tutunabildiği bilinmektedir. Hidrojen, fiziksel adsorpsiyonla karbon ... -
Bioactive glasses prepared from organic-mediated B-O-P bonded materials
Köse, Dursun Ali; Aydoğmuş, Nazik; Zümreoğlu Karan, Birgül (Elsevier, 2014)In this study, we introduce an alternative route for the synthesis of bioactive borate-phosphate glasses. Glasses with nominal compositions of xNa2O·yB2O3·zP2O 5 (x = 1, 2; y = 1/2; z = 1/2, 3/2) were obtained via melt-quench ... -
Boric acid complexes with organic biomolecules: Mono-chelate complexes with salicylic and glucuronic acids
Two mono-chelate borate complexes, lithium mono-salicylatoborate and sodium mono-glucuronatoborate, are reported for the first time. The complexes were isolated from aqueous solutions and characterized by FTIR (Fourier ... -
Boric acid complexes with thiamine (vitamin B1) and pyridoxine (vitamin B6)
Complexation of boric acid with vitamins B1 (thiamine) and B6 (pyridoxine) was investigated. The products were isolated from aqueous solutions and characterized by elemental analysis, FT-IR, 13C MAS NMR and thermal methods. ... -
Boric acid: A simple molecule of physiologic, therapeutic and prebiotic significance
Zümreoğlu Karan, Birgül; Köse, Dursun Ali (Walter de Gruyter GmbH, 2015)Boric acid, H3BO3, is a weak acid and at physiological pH is in the form of an uncharged small molecule. Behaving as a Lewis acid, it forms complexes with amino- and hydroxy acids, carbohydrates, nucleotides and vitamins ... -
Combined experimental and theoretical investigation of characterization and hydrogen storage properties of Zn(II) based complex and composites
Öztürk, Zeynel; Özkan, Göksel; Asan, Abdurrahman; Köse, Dursun Ali (Elsevier Ltd, 2015)Metal organic structured coordination complex was synthesized by using Zn(II), 1,10 Phenantroline and teraphtalic acid building blocks. Then the synthesized compound have been characterized with Ft-IR, TGA/DTA/DrTGA, EA, ... -
A comparative examination of mono- and bis-chelate salicylatoborate complexes and the crystal structure of layered magnesium bis-salicylatoborate
Complexes of boric acid with sodium- and magnesium-salicylates were prepared and analyzed to examine the structural consequences resulting from the coordination of the salicylate ligand in mono- and bis-chelate modes. The ... -
Development of novel copper modified cryogels for biochemical isolation
Köse, Kazım; Erol, Kadir; Köse, Dursun Ali (Springer, 2020)Cu(II) anchored polymeric cryogels are synthesized for the isolation of B12. The poly(2-hydroxyethyl methacrylate) [poly(HEMA)] is used as solid support and N-methacryloyl-l-aspartic acid, is used as a ligand. Synthesis ... -
Diphenic acid/nicotinamide and 1,10-phenanthroline complexes of CoII, CuII and ZnII. Synthesis and structural investigation
Şahin, Zarife Sibel; Şahin, Onur; Dağlı, Özge; Köse, Dursun Ali (Elsevier Ltd, 2016)The complexes of diphenic acid with CoII and CuII metals and diphenic acid/nicotinamide mixed ligand with CoII and ZnII metals were synthesized and characterized of structural properties by elemental analysis, FT-IR spectra, ... -
DNA binding and cleavage activities of Na[B(Glu)(OH)2] ·2H2O, Na[B(Cit)(OH)2]·2H2O, Li[B(Sal)(OH)2], and Mg[B(Sal)(OH)2]·2H 2O complexes
The interaction of some previously reported complexes Na[B(Glu)(OH) 2]·2H2O, Na[B(Cit)(OH)2]·2H 2O, Li[B(Sal)(OH)2], and Mg[B(Sal)(OH)2] ·2H2O with cattle genomic DNA (CG-DNA) was investigated using UV absorption, viscosity ... -
Effect of immobilization on the activity of catalase carried by poly(HEMA-GMA) cryogels
Erol, Kadir; Koncuk Cebeci, Büşra; Köse, Kazım; Köse, Dursun Ali (Elsevier B.V., 2019)Hydrogen peroxide is converted by catalase to molecular oxygen and water to remove oxidative stress. In this study, catalase immobilization was performed using poly(2-hydroxyethyl methacrylate-glycidyl methacrylate) ... -
Electrochemical Glucose Detection Using PdAg Nanoparticles Anchored on rGO/MWCNT Nanohybrids
Uzunoğlu, Aytekin; Köse, Dursun Ali; Gökmeşe, Ebru; Gökmeşe, Faruk (Springer/Plenum Publishers, 2020)The combination of multi-walled carbon nanotube (MWCNT) and graphene (Gr) to extend their unique physicochemical properties to 3-dimensions (3D) is known to be an effective way to achieve high catalytic properties in ... -
The electrochemical performance of manganese oxoborate cathodes for lithium-ion batteries: Effect of synthesis method
Ertekin, Zeynep; Özgenç, Gökhan; Özer, D.; İçten, Orkun; Elmacı, Gökhan; Köse, Dursun Ali; Zümreoğlu Karan, Bilge (Elsevier Ltd, 2021)Cathodes for lithium-ion batteries (LIBs) present stability and performance issues; therefore, searching for alternative novel electrode materials or modifications of known ones is one of the main issues. Warwickite-type ... -
Electrostatic adsorption of asymmetric dimethyl arginine (adma) on poly (2-hydroxyethyl methacrylate-acrylic acid) nanoparticles
Erol, Kadir; Köse, Kazım; Avcı, Emre; Köse, Dursun Ali (Taylor and Francis Inc., 2017)Separation and purification of asymmetric dimethylarginine (ADMA) molecule, which is an important biomolecule in terms of cardiovascular diseases, is of great importance. Among the methods, the adsorption technique is of ... -
Ethyl 2-[(2-hydroxybenzylidene)amino]-6-methyl-4,5,6,7-tetrahydrothieno[2, 3-c]pyridine-3-carboxylate
The title compound, C18H20N2O3S, exists as the phenol–imine form in the crystal and there are bifurcated intramolecular O—H…(N/O) hydrogen bonds present. The conformation about the C N bond is anti (1E); the C N imine bond ... -
Experimental and simulation study on structural characterization and hydrogen storage of metal organic structured compounds
Öztürk, Zeynel; Özken, Göksel; Köse, Dursun Ali; Asan, Abdurrahman (Elsevier Ltd, 2016)One of the barrier for common usage of hydrogen energy system is storing hydrogen efficiently. Especially for mobile applications, it is very important to store hydrogen in small spaces reversibly. Metal-organic framework ... -
Fabrication and characterization of magnesium and calcium trimesate complexes via ion-exchange and one-pot self-assembly reaction
Özer, Demet; Altuntaş Öztaş, Nurşen; Köse, Dursun Ali; Şahin, Onur (Elsevier B.V., 2018)Using two different synthesis methods, two diversified magnesium and calcium complexes were successfully prepared. When the ion exchange method was used, C9H14MgO11.H2O and C18H30Ca3O24 complexes were obtained. When the ...