Başlık için Kimya Bölümü Koleksiyonu listeleme
Toplam kayıt 352, listelenen: 151-170
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An electrochemical immunosensor modified with titanium IV oxide/polyacrylonitrile nanofibers for the determination of a carcinoembryonic antigen
(Royal Society of Chemistry, 2021)Carcinoembryonic antigen (CEA) is considerably addressed for the clinical diagnosis of miscellaneous tumor types. In this study, an electrochemical immunosensor for the determination of the CEA biomarker was presented. ... -
ELECTROCHEMICAL OXIDATION OF NITROGEN (II) OXIDE IN THE NEUTRAL MEDIUM
(Natl Acad Sci Republic Kazakhstan, 2019)Electrochemical oxidation of nitrogen oxide was considered in the work. The study was carried out in the sodium sulphate solution. The effects of current density in the anode, electrolyte concentration, granular electrode ... -
Electrochemical sensor based on perylene diimide derivative modified electrode
(Springer, 2021)A N,N’-Bis(1-isobutyl-1H-benzimidazole-2-yl)perylene-3,4,9,10-tetracarboxylic acid diimide (H1) modified carbon felt electrode has been prepared and applied for dopamine detection. Dopamine was chosen as the test analyte ... -
Electrochromic and electroluminescent devices based on a novel branched quasi-dendric fluorene-carbazole-2,5-bis(2-thienyl)-1H-pyrrole system
(Royal Soc Chemistry, 2011)We report here the synthesis of a novel branched quasi-dendric system, 9,9'-(9,9'-dihexylfluorene-2,7-diyl)bis[3,6-bis(2,5-bis(2-thienyl) pyrrol-1-yl)carbazole], (FCSNS), in four steps, followed by coating onto an ITO-coated ... -
Electrospun modified PAN-porphyrin nanofiber electrode for caffeine detection
(Elsevier Ltd, 2023)In this work, caffeine sensitive electrospun polyacrylonitrile-(5,10,15,20-tetra(4-tert butylphenyl)-porphyrin)/carbon felt electrode (PAN-Por/CFE) nanofiber (NF) electrochemical sensor was fabricated. In this manner, this ... -
An engineered second disulfide bond restricts lymphotactin/XCL1 to a chemokine-like conformation with XCR1 agonist activity
(Amer Chemical Soc, 2007)Chemokines adopt a conserved tertiary structure stabilized by two disulfide bridges and direct the migration of leukocytes. Lymphotactin (Ltn) is a unique chemokine in that it contains only one disulfide and exhibits ... -
Essential Oil Composition, Antioxidant, Anticholinesterase and Anti-tyrosinase Activities of Two Turkish Plant Species: Ferula elaeochytris and Sideritis stricta
(Natural Products Inc, 2018)The aim of the present study is to characterize chemical compositions and antioxidant, anticholinesterase and anti-tyrosinase activities of Ferula elaeochytris and Sideritis stricta essential oils. The hydrodistilled ... -
Essential Oil, Aroma, and Fatty Acid Profiles of Five Endemic Salvia Taxa from Turkey with Chemometric Analysis
(Wiley, 2021)The essential oil, aroma, and fatty acid compositions of Salvia cerino-pruinosa var. cerino-pruinosa, S. cerino-pruinosa var. elazigensis, S. pseudeuphratica, S. rosifolia, and S. kurdica collected in 2015, 2016, and 2017 ... -
Evaluation of Antioxidant Activities of 3 Edible Mushrooms: Ramaria flava (Schaef.: Fr.) Quel., Rhizopogon roseolus (Corda) TM Fries., and Russula delica Fr.
(Korean Society Food Science & Technology-Kosfost, 2010)The methanolic extracts of Ramaria flava, Rhizopogon roseolus", and Russula delica were analyzed for their antioxidant, activities in different test systems including. beta-carotene/linoleic acid, 1.1-dipheny1-2-picrylhydrazyl ... -
Evaluation of Antioxidant Activity and Phenolic Composition of Opuntia ficus-indica Cladodes Collected from Moroccan Settat Region
(Iser Publications, 2017)Opuntia ficus-indica cladode growing in Settat region of Morocco was freshly consumed and traditionally used in folk medicine for health benefits by the local people. The antioxidant activity and the chemical compounds of ... -
Evaluation of Enzyme Inhibition and Anti-Quorum Sensing Potentials of Melaleuca alternifolia and Citrus sinensis Essential Oils
(SAGE PUBLICATIONS, 2021)In this study, Melaleuca alternifolia (Maiden and Betche) Cheel (tea tree) oil and C. sinensis (L.) Osbeck (orange) oil was procured, and their chemical compositions were characterized by gas chromatography coupled with ... -
Evaluation of metal concentration and antioxidant activity of three edible mushrooms from Mugla, Turkey
(Pergamon-Elsevier Science Ltd, 2010)This study is designed for the determination of metal concentrations, antioxidant activity potentials and total phenolics of Amanita caesarea, Clitocybe geotropa and Leucoagaricus pudicus. Concentrations of four heavy ... -
Evaluation of the antioxidant activity of four edible mushrooms from the Central Anatolia, Eskisehir-Turkey: Lactarius deterrimus, Suillus collitinus, Boletus edulis, Xerocomus chrysenteron
(Elsevier Sci Ltd, 2008)The methanolic extracts of Lactarills deterrimus, Suillus collitinus, Boletits edidis, Xcroconius chrysenteron were analyzed for their antioxidant activities in different test systems namely beta-carotene/linoleic acid, ... -
Evaluation of the efficacy in cosmetic products safety: Comparison with biochemical substrates
(Academic Press Inc Elsevier Science, 2019)Chemicals used in cosmetics must interact with the enzymes for their consumption after entering our bodies. The area at which the interaction realizes on the enzyme is known as the active center. This center is three ... -
Evaluation of the fuel cell performances of TiO2/PAN electrospun carbon-based electrodes
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL, 2021)Electrocatalytic effect of the untreated and TiO2+polyacrylonitrile (PAN) modified discarded battery coal (DBC) and pencil graphite electrodes (PGE) were evaluated in fuel cell (FC) applications. TiO2 + PAN solution is ... -
Examination of performance of glassy carbon paste electrode modified with gold nanoparticle and xanthine oxidase for xanthine and hypoxanthine detection
(Elsevier, 2007)A composite electrode was prepared by modifying glassy carbon microparticles with gold nanoparticles (Au-nps) and xanthine oxidase enzyme (XOD) for xanthine (X) and hypoxanthine (Hx) detection. After the optimization of ... -
Examination of the Electroanalytic Performance of Carbon Nanotube (CNT) Modified Carbon Paste Electrodes as Xanthine Biosensor Transducers
(Scientific Technical Research Council Turkey-Tubitak, 2008)The effect of multi-walled carbon nanotube (MWCNT) and single-wall carbon nanotube (SWCNT) on carbon paste electrode (CPE) electrochemical response was examined by introducing various portions of CNT into the CPE. The ... -
Experimental design applications in chemistry: A case study on Central composite design for optimization of extraction of olive seeds in a Soxhlet
(Taylor and Francis Ltd., 2019)Chemometrics is described in general as to extract the more useful information from the chemical data obtained experimentally by various methods applying some mathematical techniques to these data. Today, studies in many ... -
Experimental design optimization and decolorization of an azo dye by cross-linked peroxidase aggregates
(Ege Universitesi, 2021)Synthetic textile azo-dyes are important water contaminants in industrial textile wastes and peroxidases have potential for textile-dye degradation. The optimization of enzyme activity as crosslinked enzyme aggregases ... -
Expression of Cytosolic and Non-Cytosolic Carbonic Anhydrase Enzymes from Bovine Large Intestine
(Chemical Publishing Co., 2017)Carbonic anhydrase is an enzyme that takes responsibility in inhalation function but, until today, carbonic anhydrase is not examined if it is present in the bovine large intestine or not. The enzyme carbonic anhydrase was ...
