Yazar "Yalcin, E" için listeleme
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Adsorption of serum albumin and gamma-globulin from single and binary mixture and characterization of pHEMA-based affinity membrane surface by contact angle measurements
Bayramoglu, G; Yalcin, E; Arica, MY (Elsevier Science Bv, 2005)In this study, an affinity membrane was synthesized using 2-hydroxyethylmethacrylate (HEMA) via UV-initiated photopolymerization. A dye-ligand (i.e., Procion Red HE-3B; Red-120) was covalently immobilized onto membrane. ... -
Affinity membrane chromatography: relationship of dye-ligand type to surface polarity and their effect on lysozyme separation and purification
Arica, MY; Yilmaz, M; Yalcin, E; Bayramoglu, G (Elsevier, 2004)Two different dye-ligands, i.e. Procion Brown MX-5BR (RB-10) and Procion Green H-4G (RG-5) were immobilised onto poly(2-hydroxyethylmethacrylate) (pHEMA) membranes. The polarities of the affinity membranes were determined ... -
Characterization of polyethylenimine grafted and Cibacron Blue F3GA immobilized poly (hydroxyethylmethacrylate-co-glycydylmethacrylate) membranes and application to bilirubin removal from human serum
Bayramoglu, G; Yalcin, E; Arica, MY (Elsevier Science Bv, 2005)In this study, acrylic hydrogel copolymer membrane was synthesized from 2-hydroxyethylmethacrylate (HEMA) and glycidyl methacrylate (GMA) monomers. The pol ethylenimine polymer was then grafted onto membrane surface ... -
Dye-ligand immobilized IPNs membrane for removal heavy metal ions
Bayramoglu, G; Yalcin, E; Genc, O; Arica, MY (Wiley-V C H Verlag Gmbh, 2003)We have developed a novel approach to obtain high metal sorption capacity utilizing a membrane containing chitosan and an immobilized reactive dye (i.e. Reactive Yellow-2). The composite membrane was characterized by SEM, ... -
Equilibrium and kinetic studies on biosorption of Hg(II), Cd(II) and Pb(II) ions onto microalgae Chlamydomonas reinhardtii
Tuzun, I; Bayramoglu, G; Yalcin, E; Basaran, G; Celik, G; Arica, MY (Academic Press Ltd- Elsevier Science Ltd, 2005)The microalgae Chlamydomonas reinhardtii was used for the biosorption of Hg(II), Cd(II) and Pb(II) ions. The maximum adsorption of Hg(II) and Cd(II) ions on Chlamydomonas reinhardtii biomass was observed at pH 6.0 and the ... -
Human serum albumin adsorption on poly[(glycidyl methacrylate)-co-(methyl methacrylate)] beads modified with a spacer-arm-attached L-histidine ligand
Bayramoglu, G; Senel, AU; Yalcin, E; Arica, MY (Wiley, 2006)Poly(GMA/MMA) beads were synthesized from glycidyl methacrylate (GMA) and methyl methacrylate (MMA) in the presence of a cross-linker (i.e. ethyleneglycol dimethacrylate) (EGDMA) via suspension polymerization. The epoxy ... -
Immobilization of urease via adsorption onto L-histidine-Ni(II) complexed poly(HEMA-MAH) microspheres: Preparation and characterization
Bayramoglu, G; Yalcin, E; Arica, MY (Elsevier Sci Ltd, 2005)Poly(2-hydroxyethyl methacrylate-co-N-methacryloly-L-histidinemethylester) poly(HEMA-MAH) microspheres was prepared via suspension polymerization. L-Histidine groups of the poly(HEMA-MAH) microspheres were then chelated ... -
Modification of surface properties of Lentinus sajor-caju mycelia by physical and chemical methods: evaluation of their Cr6+ removal efficiencies from aqueous medium
Bayramoglu, G; Celik, G; Yalcin, E; Yilmaz, M; Arica, MY (Elsevier, 2005)The hexavalent chromium biosorption onto untreated and heat-, acid- and alkali-treated Lentinus sajor-caju mycelia. were studied from aqueous solutions. The particles sizes of the fungal mycelia ranged from 100 to 200 mu ... -
Novel hydrogel membrane based on copoly(hydroxyethyl methacrylate/p-vinylbenzylpoly(ethylene oxide)) for biomedical applications: Properties and drug release characteristics
The aim of this study was to synthesize and characterize a novel biocompatible polymeric membrane system and demonstrate its potential use in various biomedical applications. Synthetic hydrogels based on poly(hydroxyethyl ... -
Polyethylenimine-grafted and HSA-immobilized poly(GMA-MMA) aff inity adsorbents for bilirubin removal
Arica, MY; Yalcin, E; Bayramoglu, G (Wiley-Blackwell, 2005)The epoxy-group-containing microspheres from cross-linked glycidyl methacrylate and methyl methacrylate, poly(GMA-MMA), were prepared by suspension polymerisation. The epoxy groups of the poly(GMA-MMA) microspheres were ... -
Surface properties of Reactive Yellow 2 immobilised pHEMA and HEMA/chitosan membranes: characterisation of their selectivity to different proteins
Arica, MY; Yilmaz, M; Yalcin, E; Bayramoglu, G (Elsevier, 2004)Poly(hydroxyethyl methacrylate), pHEMA, and a composite pHEMA/chitosan networks were synthesized in the membrane form via UV initiated photo-polymerisation in the presence of an initiator alpha,alpha'-azoisobutyronitrile. ... -
Utilisation of native, heat and acid-treated microalgae Chlamydomonas reinhardtii preparations for biosorption of Cr(VI) ions
Arica, MY; Tuzun, I; Yalcin, E; Ince, O; Bayramoglu, G (Elsevier Sci Ltd, 2005)The hexavalent chromium biosorption onto native, heat- and acid-treated Chlamydomonas reinhardtii was studied from aqueous solutions. Biosorption equilibrium was established in about 120 min. The surface properties of the ...