Güncel Gönderiler: Biyoloji Bölümü
Toplam kayıt 480, listelenen: 341-360
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Reversible immobilization of lipase on phenylalanine containing hydrogel membranes
(Elsevier Sci Ltd, 2001)Poly(2-hydroxyethylmethacrylate-co-methacrylamidophenlyalanine) poly(HEMA-MAPA) membranes were prepared by UV-initiated photopolymerization of HEMA and MAPA. Lipase immobilization onto these membranes from aqueous solutions ... -
Zinc ion-promoted adsorption of lysozyme to Cibacron Blue F3GA-attached microporous polyamide hollow-fiber membranes
(Elsevier Science Bv, 2001)Dye-affinity and metal chelate affinity adsorption are increasingly used for protein separation. Synthetic hollow fiber membranes have advantages as support matrices in comparison to conventional bead supports because they ... -
Hydrolysis of sucrose by invertase immobilized onto novel magnetic polyvinylalcohol microspheres
(Elsevier Sci Ltd, 2001)The magnetic polyvinylalcohol (PVAL) microspheres were prepared by crosslinking glutaraldehyde. 1,1 ' -Carbonyldiimidazole (CDI), a carbonylating agent was used for the activation of hydroxyl groups of polyvinylalcohol, ... -
Novel hydrophobic ligand-containing hydrogel membrane matrix: preparation and application to gamma-globulins adsorption
(Elsevier Science Bv, 2001)In this study, phenylalanine as a hydrophobic ligand was covalently attached to the co-monomer methacrylochloride. Then, poly(2-hydroxyethylmethacrylate-co-methacrylamidophenyalanine) [poly(HEMA-MApA)] membranes were ... -
Immobilization of glucoamylase on the plain and on the spacer arm-attached poly(HEMA-EGDMA) microspheres
(John Wiley & Sons Inc, 2001)Immobilization glucoamylase onto plain and a six-carbon spacer arm (i.e., hexamethylene diamine, HMDA) attached poly(2-hydroxyethylmethacrylate-ethylen col dimethacrylate) [poly(HEMA-EGDMA] microspheres was studied. The ... -
Dye-affinity hollow-fibres and their lysozyme adsorption-desorption characteristics
(John Wiley & Sons Ltd, 2001)Dye-affinity adsorption is increasingly used for protein separation. Hollow-fibres have advantages as adsorbents in comparison to conventional bead supports because they are not compressible and can eliminate internal ... -
Immobilization of catalase via adsorption onto L-histidine grafted functional pHEMA based membrane
(Elsevier Science Bv, 2001)Poly(2-hydroxyethylmethacrylate) (pHEMA) based flat sheet membrane was prepared by UV-initiated photopolymerization technique. The membrane was then grafted with L-histidine. Catalase immobilization onto the membrane from ... -
Therapeutic affinity adsorption of iron(III) with dye- and ferritin-immobilized pHEMA adsorbent
(John Wiley & Sons Inc, 2001)Microporous poly(2-hydroxyethylmethacrylate) (pHEMA) films carrying cibacron blue F3GA, Congo red, and ferritin were prepared and used for iron(III) removal from human plasma. pHEMA films were produced by a photopolymerization ... -
Preparation of reversibly immobilized lysozyme onto Procion Green H-E4BD-attached poly(hydroxyethylmethacrylate) film for hydrolysis of bacterial cells
(Elsevier Sci Ltd, 2001)The flat sheet support for enzyme immobilization was prepared by UV-initiated photopolymerization of 2-hydroxyethyl-methacrylate (HEMA) in the presence of an initiator (alpha alpha'-azoisobutyronitrile. AIBN). An affinity ... -
Entrapment of white-rot fungus Trametes versicolor in Ca-alginate beads: preparation and biosorption kinetic analysis for cadmium removal from an aqueous solution
(Elsevier Sci Ltd, 2001)The biosorption of cadmium ions onto entrapped Trametes versicolor mycelia has been studied in a batch system. The maximum experimental biosorption capacities for entrapped live and dead fungal mycelia of T. versicolor ... -
Procion Green H-E4BD-immobilized porous poly(hydroxyethylmethacrylate) ion-exchange membrane: preparation and application to lysozyme adsorption
(Elsevier Science Bv, 2001)Lysozyme adsorption onto Procion Green HE-4BD-immobilized poly(2-hydroxyethylmethacrylate) (pHEMA) membrane were investigated. The membrane were prepared by ultraviolet-initiated photopolymerization of HEMA in the presence ... -
Synthesis of Poly[(hydroxyethyl methacrylate)-co-(methacrylamidoalanine)] Membranes and Their Utilization as an Affinity Sorbent for Lysozyme Adsorption
(Wiley-V C H Verlag Gmbh, 2001)Various adsorbent materials have been reported in the literature for protein separation. We have developed a novel and new approach to obtain high protein-adsorption capacity utilizing a 2-methacrylamidoalamne-containing ... -
Dye affinity poly(2-hydroxyethyl methacrylate) membranes for removal of heavy metal ions
(Marcel Dekker Inc, 2000)The dichlorotriazinyl dye-ligand Procion Red HE-3B-anchored poly(EGDMA-HEMA) membranes were used for removal of heavy metal ions (i.e., copper, arsenic, cadmium and mercury) from aqueous media containing different amounts ... -
A study of egg production in three species of wolf spiders (Araneae, Lycosidae), Pardosa amentata, P-palustris, and P-pullata in the field
(Laser Pages Publ Ltd, 2000)Egg production by three species of Pardosa was studied over a 3-year period in a grassland, a fallow field, and a meadow in Northumberland (England). Differences in egg production were found to be related to the size of ... -
The Detection of Mutagenic Activity of Some Chemicals (Azamethyphos, Dichlor zamethyphos, Dichlorvos, Methyl par os, Methyl parathion, Aflat athion, AflatoxinB1) b xinB1) by SMART Drosophila melanogaster
(Scientific Technical Research Council Turkey, 2000)In this study mutagenic effects of some chemicals used in Veterinary Medicine and agricultural fields was investigated by Somatic Mutation and Recombination Test (SMART). SMART test was to observe the chemical effects on ... -
Performance of different metal-dye chelated affinity adsorbents of poly(2-hydroxyethyl methacrylate) in lysozyme separation
(Marcel Dekker Inc, 2000)The triazine dye Cibacron Blue F3GA was covalently immobilized as an affinity ligand onto microporous poly(2-hydroxyethyl methacrylate) (pHEMA) membranes. Three different metal ions [i.e.. Fe(III), Zn(II), or Cu(II)] were ... -
Adsorption of heavy metal ions onto ethylene diamine-derived and Cibacron Blue F3GA-incorporated microporous poly(2-hydroxyethyl methacrylate) membranes
(Elsevier Science Bv, 2000)Microporous poly( 2-hydroxyethylmethacrylate) (PHEMA) membranes carrying ethylene diamine (EDA) and Cibacron Blue F3GA were prepared for the removal of heavy metal ions (i.e. mercury, copper, lead and cadmium) from aqueous ... -
A new species of Dianthus (Caryophyllaceae) from Salt Lake, Central Anatolia, Turkey
(Finnish Zoological Botanical Publishing Board, 2000)Dianthus aydogduii Y. Menemen & E. Hamzaoglu from Salt Lake, Central Anatolia, Turkey, is described as a species new to science and illustrated. -
In vitro cadmium removal from human serum by Cibacron Blue F3GA-thionein-complex conjugated affinity membranes
(John Wiley & Sons Ltd, 2000)A new membrane affinity biosorbent carrying thionein has been developed for selective removal of cadmium ions from human serum. Microporous poly(2-hydroxyethyl methacrylate) (pHEMA) membranes were prepared by photopolymerization ... -
Invertase immobilized on spacer-arm attached poly(hydroxyethyl methacrylate) membrane: Preparation and properties
(John Wiley & Sons Inc, 2000)Microporous poly(2-hydroxyethyl methacrylate) (pHEMA) membrane was prepared by UV-initiated photopolymerization. The spacer arm (i.e., hexamethylene diamine) was attached covalently and then invertase was immobilized by ...
