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Toplam kayıt 62, listelenen: 1-10
Chemoenzymatic synthesis of 2-brorno-6-hydroxy-3-methoxy-2-cyclohexen-1-one
(Scientific Technical Research Council Turkey-Tubitak, 2007)
A chemoenzymatic synthesis of 2-bromo-6-hydroxy-3-methoxy-2-cyclohexen-1-one starting from cyclohexane-1,3-dione is reported. Manganese (III) acetate-mediated acetoxylation followed by the enzyme-mediated hydrolysis of ...
Dimethyl trans-3-(4-bromophenyl)-2-methylisoxazolidine-4,5-dicarboxylate
(Wiley-Blackwell, 2009)
In the title compound, C14H16BrNO5, the isoxazolidine ring adopts an envelope conformation, with the N atom at the flap. In the crystal, intermolecular C-H center dot center dot center dot N and C-H center dot center dot ...
Removal of Remazol Brilliant Blue R dye from aqueous solutions by adsorption onto immobilized Scenedesmus quadricauda: Equilibrium and kinetic modeling studies
(Elsevier Science Bv, 2009)
The green algae Scenedesnnus quadricauda was immobilized in alginate gel beads. The immobilized active (IASq) and heat inactivated S. quadricauda (IHISq) were used for the removal of Remazol Brilliant Blue R (Cl 61200, ...
Poly[μ-aqua-diaqua(μ2-pyrazine-2,3-dicarboxylato)dilithium(I)]
(Wiley-Blackwell, 2009)
The asymmetric unit of the title compound, [Li-2(C6H2N2O4)(H2O)(3)](n), consists of two independent Li+ cations, one pyrazine-2,3-dicarboxylate dianion and three water molecules. One of the Li+ cations has a distorted ...
Effect of polycondensation reaction conditions on the properties of thermotropic liquid-crystalline copolyester
(Taylor & Francis Inc, 2008)
In this study a range of wholly aromatic copolyesters based on kink m-acetoxybenzoic acid (m-ABA) monomer (33 mol%) and equimolar-linear p-acetoxybenzoic acid (p-ABA), hydroquinone diacetate (HQDA) and terephthalic acid ...
Biosorption of lead(II) and copper(II) metal ions on Cladophora glomerata (L.) kutz. (Chlorophyta) algae: Effect of algal surface modification
(Slovensko Kemijsko Drustvo, 2008)
Heavy metals are present in some industrial effluents, being responsible for environmental pollution. Biosorption of heavy metals can be an effective method for the removal of heavy metal ions from wastewaters. In this ...
Controlled release of indomethacin from crosslinked alginate beads
(Walter De Gruyter Gmbh, 2008)
Beads of the sodium alginate ( NaAlg) were prepared by dropping aqueous sodium alginate ( NaAlg) into glutaraldehyde ( GA) as a crosslinker and HCl as a catalyst mixture solution. Beads prepared were used to deliver a model ...
Preparation and characterization of a ZnO powder with the hexagonal plate particles
(Elsevier, 2008)
Zinc oxide precursors were obtained by the reaction of excess urea with 0.05-0.30 M ZnSO4 in boiling aqueous solution. The precursors precipitated were dried at 100 degrees C for 2 h to yield powdery products and these ...
In vitro release study of diltiazem hydrochloride from poly(vinyl pyrrolidone)/sodium alginate blend microspheres
(Wiley, 2008)
Polymeric blend microspheres of poly(vinyl pyrrolidone) (PVP) with sodium alginate (NaAlg) were prepared by cross-linking with calcium ions and used to deliver a calcium channel blocker drug, diltiazem hydrochloride (DT). ...
Dimethylammonium bis(3-oxido-naphthalene-2-carboxylato)borate hemihydrate
(Wiley-Blackwell, 2008)
The title compound, C2H8N+center dot C(22)H(12)BO6(-)center dot 0.5H(2)O, was synthesized under atmospheric conditions in the presence of dimethylformamide acting as a template. The structure is composed of [NH2(CH3)2](+) ...