Güncel Gönderiler: PubMed İndeksli Yayınlar Koleksiyonu
Toplam kayıt 1498, listelenen: 481-500
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Preparation of magnetic dye affinity adsorbent and its use in the removal of aluminium ions
(Vsp BV, 2001)Aluminium has recently been considered as a causative agent in dialysis encephalopathy, osteodystrophy, and anemia occuring in hemodialysis patients. The aim of this study is to prepare magnetic poly (2-hydroxyethylmethacrylate) ... -
Synthesis of cholesterol imprinted polymeric particles
(Elsevier Science BV, 2007)The aim of this study is to prepare cholesterol-imprinted polymeric particles. N-Methacryloyl-(L)-tyrosinemethylester (MAT) was chosen as the complexing monomer. In the first step, functional monomer MAT was synthesized ... -
Immunoglobulin G depletion from human serum with metal-chelated beads under magnetic field
(Elsevier Science BV, 2007)Magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-(L)-histidine methyl ester) [mag-poly(EGDMA-MAH) beads, 50-100 mu m in diameter, were produced by suspension polymerization for affinity depletion of immunoglobulin ... -
FTIR spectroscopic and theoretical study of the photochemistry of matrix-isolated coumarin
(Wiley, 2007)The infrared spectrum of monomeric unsubstituted coumarin (C9H6O2; 2H-1-benzopyran-2-one), isolated in solid argon at 10 K is presented and assigned. The UV-induced (lambda > 200 nm) unimolecular photochemistry of the ... -
Novel fused D-A dyad and A-D-A triad incorporating tetrathiafulvalene and p-benzoquinone
(American Chemical Society, 2004)Novel fused donor-acceptor dyad (TTF-Q or D-A) and acceptor-donor-acceptor triad (Q-TTF-Q or A-D-A) incorporating the donor tetrathiafulvalene (TTF) and the acceptor p-benzoquinone (Q) have been synthesized. The solution ... -
NMR spectra, GIA and charge density calculations of five-membered aromatic heterocycles
(Wiley-Blackwell, 2007)The B3LYP/6-31+G(d) molecular geometry optimized structures of 17 five-membered heterocycles were employed together with the gauge including atomic orbitals (GIAO) density functional theory (DFT) method at the B3LYP/6-31+G(d,p), ... -
A theoretical study of substituent effects on tautomerism of 2-hydroxybenzimidazoles
(Springer-Verlag, 2003)The geometries, relative stabilities of some 4(7) and 5(6) substituted 2-hydroxybenzimidazole derivatives were calculated with full geometry optimization using AM1 and PM3 in aqueous phase. With the exception of molecules ... -
Quantum chemical and experimental studies on the mechanism of alkylation of beta-dicarbonyl compounds. The synthesis of five and six membered heterocyclic spiro derivatives
(MDPI, 2004)The alkylation of beta-dicarbonyl compounds in a K2CO3/DMSO system was found to afford O- and C-alkylated derivatives, depending on the type of the P-dicarbonyl compound involved. The alkyl derivatives obtained were used ... -
Determination of the equilibrium, kinetic and thermodynamic parameters of adsorption of copper(II) ions onto seeds of Capsicum annuum
(Elsevier Science BV, 2005)Adsorption of copper ions onto Capsicum annuum (red pepper) seeds was investigated with the variation in the parameters of pH, contact time, adsorbent and copper(II) concentrations and temperature. The nature of the possible ... -
Biosorption of cadmium(II), lead(II) and copper(II) with the filamentous fungus Phanerochaete chrysosporium
(Elsevier Sci LTD, 2001)The biosorption from artificial wastewaters of heavy metals (Cd(II), Pb(II) and Cu(II)) onto the dry fungal biomass of Phanerochaete chryosporium was studied in the concentration range of 5-500 mg 1(-1). The maximum ... -
Methacryloylamidoglutamic acid having porous magnetic beads as a stationary phase in metal chelate affinity chromatography
(Taylor & Francis LTD, 2006)We have prepared a novel magnetic metal-chelate adsorbent utilizing methacryloylamidoglutamic acid (MAGA) as a metal-chelating ligand. MAGA was synthesized by using methacryloyl chloride and L-glutamic acid dihydrochloride. ... -
4 ',4 ',6 ',6 '-tetrachloro-3,4-dihydro-3-(6-methylpyridin-2-yl)spiro-[1,3,2-benzoxazaphosphinine-2,2 '-(2 lambda(5),4 lambda(5),6 lambda(5)-cylotriphosphazene)]
(Int Union Crystallography, 2004)The title compound, C13H12Cl4N5OP3, is a phosphazene derivative with a bulky substituted spirocyclic ring. The C3NPO spirocyclic ring has a twist-boat conformation, while the phosphazene ring has a very flattened boat ... -
Poly(hydroxyethyl methacrylate-co-methacrylamidoalanine) membranes and their utilization as metal-chelate affinity adsorbents for lysozyme adsorption
(Vsp BV, 2002)Different adsorbents have been reported in the literature for protein purification. The authors have developed a novel and new approach to obtain high protein adsorption capacity utilizing a 2-methacrylamidoalanine-containing ... -
Ion-imprinted beads for molecular recognition based mercury removal from human serum
(Elsevier Science BV, 2007)The aim of this study is to prepare ion-imprinted polymers which can be used for the selective removal of mercury ions [Hg2+] from human serum. N-Methacryloyl-(L)-cysteine (MAC) was chosen as the complexing monomer. In the ... -
Synthesis and characterization of pseudo-affinity ligand for penicillin acylase purification
(Elsevier Science BV, 2006)The aim of this work was to test a chromatographic affinity support containing methacryloyl antipyrine (MAAP) for penicillin acylase (PA) purification by using pure penicillin acylase and crude extract. First, MAAP as a ... -
Molecular recognition based cadmium removal from human plasma
(Elsevier Science BV, 2004)Molecularly imprinted polymers (MIPs) are easy to prepare, stable, inexpensive and capable of molecular recognition. MIPs can be considered as affinity separation media. Cadmium is a carcinogenic and mutagenic element. ... -
Affinity separation of immunoglobulin G subclasses on dye attached poly (hydroxypropyl methacrylate) beads
(Elsevier Science BV, 2006)Poly(hydroxypropyl methacrylate) [poly(HPMA)] gel beads with an average size of 150-200 mu m were prepared by suspension polymerization of hydroxypropyl methacrylate (HPMA). The poly(HPMA) gel beads were characterized by ... -
Cr(III)-imprinted polymeric beads: Sorption and preconcentration studies
(Elsevier Science BV, 2007)The purpose of this study is to prepare a novel molecular imprinted adsorbent to Cr(III) analysis with high selectivity. Initially, chromium (III)-methacryloylhistidine (MAH/Cr(III)) complex monomer was synthesized and ... -
Effects of In, Al and Sn dopants on the structural and optical properties of ZnO thin films
(Pergamon-Elsevier Science LTD, 2007)Effect of In, Al and Sn dopants on the optical and structural properties of ZnO thin films have been investigated by X-ray diffraction technique and optical characterization method. X-ray diffraction patterns confirm that ... -
Molecular recognition based iron removal from human plasma with imprinted membranes
(SAGE Publications LTD, 2006)The aim of this study is to prepare ion-imprinted poly(2-hydroxyethyl methacrylate) ( HEMA) based membranes which can be used for the selective removal of Fe3+ ions from Fe(3+)overdosed human plasma. N-methacryloyl-(L)-glutamic ...
