Başlık için FEF, Kimya Bölümü Koleksiyonu listeleme
Toplam kayıt 441, listelenen: 41-60
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Chemical variation, antimicrobial, nitric oxide scavenging activities and tyrosinase inhibition of essential oils and solvent extracts from filipendula vulgaris moench growing in Turkey
(Shaheed Beheshti University, 2021)Volatile organic compositions of the essential oils (EOs), solid-phase microextraction (SPME) and SPME of n-hexane extracts from the flower and stem-leaf of Filipendula vulgaris (F. vulgaris) were analyzed by GC-FID/MS. A ... -
Cholesterol forms and traditional lipid profile for projection of atherogenic dyslipidemia: lipoprotein subfractions and erythrocyte membrane cholesterol
(Springer, 2014)Atherogenic dyslipidemia characterized by abnormal changes in plasma lipid profile such as low high-density lipoprotein (HDL) and increased triglyceride (TG) levels is strongly associated with atherosclerotic diseases. We ... -
Cloning, expression and characterization of alkaline phosphatase from a thermophilic bacterium Geobacillus caldoxylosilyticus TK4
(Turkish Biochemistry Society, 2010)Aim: To clone the gene for alkaline phosphatase (AP) from a novel thermophilic Geobacillus caldoxylosilyticus TK4 strain and to express and characterize this enzyme. Methods: The gene was cloned into pET28a(+) vector and ... -
Cloning, expression and characterization of highly thermo- and pH-stable maltogenic amylase from a thermophilic bacterium Geobacillus caldoxylosilyticus TK4
(Elsevier, 2010)Maltogenic amylases (MAases), a subclass of cyclodextrin (CD)-hydrolyzing enzymes, belong to glycoside hydrolase family 13. A gene corresponding to MA in Geobacillus caldoxylosilyticus TK4 (GcaTK4MA) was cloned into pET28a(+) ... -
Cloning, expression and characterization of xylose isomerase from thermophilic Geobacillus caldoxylosilyticus TK4 strain
(Turkish Biochemistry Society, 2011)Aim: To clone the gene of Xylose isomerase (XyI) from thermophilic Geobacillus cal-doxylosilyticus TK4 strain and to express and characterize this enzyme. Methods: XyI gene of Geobacillus caldoxylolyticus was cloned into ... -
Cobalt borophosphate on nickel foam as an electrocatalyst for water splitting
(Elsevier, 2022)One of the most critical steps in the transition to carbon-free energy systems is sustainable hydrogen evolution from water. In this research, a cobalt borophosphate crystalline compound consisting of phosphate and borate ... -
Comparison of electrostatic potential obtained from different atomic point charges calculation methods for a large set of molecules
(World Stientific Publishing, 2021)The Electrostatic Potential is of great importance in chemical reactivity since it is closely related to many of molecular properties. Despite the fact that there are significant improvements in the quantum mechanical ... -
Comparison of phenolic profiles and antioxidant activity of three Ornithogalum L. species
(2019)Background: Aboveground parts and bulbs of Ornithogalum species are consumed as food and used in traditional medicine in worldwide. Objective: It is aimed to report the antioxidant capacity and phenolic compounds content ... -
Composition and antimicrobial activity of essential oil from the flower of Rhododendron luteum Sweet
(Chemical Publishing Co., 2012)Essential oil from air-dried flower of Rhododendron luteum Sweet (Ericaceae), was obtained by hydrodistillation in a Clevenger-type apparatus and analyzed by GC-MS and GC-FID. Sixty-four components were identified in the ... -
Computational studies on the anastrozole and letrozole, effective chemotherapy drugs against breast cancer
(Pergamon-Elsevier Science Ltd, 2014)In this paper, computational studies were carried out on anastrozole and letrozole, chemotherapy drugs used against breast cancer. Optimization and frequency calculations were performed at B3LYP/6-31G (d) basis set and ... -
A convenient method for the synthesis of 3,4-dihydroquinazolines from iminoester hydrochlorides via microwave irradiation
(Sage Publications Ltd, 2019)This is work presents a simple and practical strategy for the synthesis of 2-substituted-3,4-dihydroquinazolines in which the ring closure reaction of 2-aminobenzylamine with corresponding iminoester hydrochlorides via ... -
Copper(II) complexes with pyridine-2,6-dicarboxylic acid from the oxidation of copper(I) iodide
(Taylor & Francis Ltd, 2017)Via an oxidation reaction of Cu(I) iodide with pyridine-2,6-dicarboxylic acid (H2L) in DMF three copper(II) complexes, [(CH3)(2)NH2](2)[CuL2] (1), K-2 [CuL2]center dot H2L center dot H2O(2) and [Cu(L)(H2O)](n) (3), were ... -
Correlation between phenolic compounds and antioxidant activity of Anzer tea (Thymus praecox Opiz subsp caucasicus var. caucasicus)
(Elsevier Science Bv, 2014)Phenolic compounds of Thymus praecox Opiz subsp. caucasicus var. caucasicus were analyzed by high performance liquid chromatography equipped with an ultraviolet detector (HPLC-UV). Quercetin (co-eluting with luteolin) and ... -
Covalent grafting of pyridine-2-methanol into kaolinite layers
(Elsevier, 2013)A novel hybrid organic-clay material was prepared by grafting of pyridine-2-methanol in the interlayer space of kaolinite by using a kaolinite/methanol compound as an intermediate. A kaolinite/methanol compound was obtained ... -
Crystal structure of 4-[(4-Ethyl-5-Phenyl-4H-1,2,4-Triazol-3-yl)sulfanyl]phthalonitrile
(Pleiades Publishing Inc, 2018)The structure of the 4-[(4-ethyl-5-phenyl-4H-1,2,4-triazol-3-yl)sulfanyl]phthalonitrile titled molecule is determined by means of X-ray diffraction. the title compound has weak inter- and intramolecular C-H...N-type hydrogen ... -
Crystallographic, spectroscopic (FTIR and NMR) and quantum computational calculation studies on bis(2-methoxy-4-((E)-prop-1-enyl)phenyl)oxalate
(Elsevier Science Bv, 2017)In this paper, we report first, a new synthesis of bis(2-methoxy-4-((E)-prop-1-enyl)phenyl)oxalate, namely, C22H22O6, (I). Then, we present detailed FTIR, H-1 NMR,C-13 NMR spectroscopies and single-crystal X-ray diffraction ... -
A cyanide-based coordination polymer for hydrogen evolution electrocatalysis
(Springer, 2018)Research on H-2 production has recently been directed to the development of cost-efficient and robust heterogeneous catalysts for hydrogen evolution reaction (HER). Given the promising catalytic activities of several ... -
Design and synthesis of benzimidazole derivatives as apoptosis-inducing agents by targeting Bcl-2 protein
(Springer, 2022)Bcl-2, an anti-apoptotic protein, is a well-known and appealing cancer therapy target. Novel series of benzimidazole derivatives were synthesized and tested for their activity as Bcl-2 inhibitors on T98G glioblastoma, PC3 ... -
Design, molecular docking and synthesis of novel 5,6-dichloro-2-methyl-1H-benzimidazole derivatives as potential urease enzyme inhibitors
(Academic Press Inc Elsevier Science, 2019)A novel series of 5,6-dichloro-2-methyl-1H-benzimidazole derivatives was synthesized and then screened for their urease inhibitory activity. All compounds showed more potent inhibitory activity in the range of IC50= 0.0294 ... -
Design, synthesis and biological evaluation of water soluble and non-aggregated silicon phthalocyanines, naphthalocyanines against A549, SNU-398, SK-MEL128, DU-145, BT-20 and HFC cell lines as potential anticancer agents
(Elsevier, 2021)Cancer has become an important public problem in worldwide since cancer incidence and mortality are growing rapidly. In this study, water soluble and non-aggregated silicon (IV) phthalocyanines and naphthalocyanines ...