Fen Fakültesi: Recent submissions
Now showing items 101-120 of 236
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Sensitive Amperometric Detection of Hydroxylamine at Electropolymerized Curcumin Film Coated Pencil Graphite Electrode
(John Wiley and Sons Inc, 2023)In this study, a sensitive electrochemical method was developed for the determination of hydroxylamine (H-A) using a curcumin-modified pencil graphite electrode prepared with the electropolymerization of curcumin (PolyCurc-PGE). ... -
Synthesis of Selagibenzophenone A and Its Derivatives for Evaluation of Their Antiproliferative, ROR gamma Inverse Agonistic, and Antimicrobial Effect
(John Wiley and Sons Inc, 2023)We report a modular synthetic approach towards novel derivatives of the naturally occurring arylated benzophenone selagibenzophenone A. The initial strategy for the construction of the carbon framework of the derivatives ... -
New results concerning Cartan null and pseudo null curves in Minkowski 3-space
(Birkhauser, 2023)In this study, we focus on Cartan null and pseudo null curves in Minkowski 3-space E13 . Firstly we define Cartan null and pseudo null equivalent curves and give the related examples. Then we give a construction method for ... -
Looking at NSAIDs from a historical perspective and their current status in drug repurposing for cancer treatment and prevention
(Springer Science and Business Media Deutschland GmbH, 2023)Non-steroidal anti-inflammatory drugs (NSAIDs) are one of the most frequently prescribed drug classes with wide therapeutic applications over the centuries. Starting from the use of salicylate-containing willow leaves to ... -
The application of multi-walled carbon nanotubes modified pencil graphite electrode for voltammetric determination of favipiravir used in COVID-19 treatment
(Springer, 2023)This study describes the first application of an improved procedure on a pencil graphite electrode decorated with functionalized multi-walled carbon nanotubes (f-MWCNTs/PGE) for the determination of the COVID-19 antiviral ... -
Alpha-Glucosidase Enzyme Immobilized Dextran-Co Metal Nanoparticle Cryogel Composite Systems as Dual Catalyst with Enhanced Stability and Catalytic Activity
(John Wiley and Sons Inc, 2023)Here, dextran (Dex) cryogels were prepared and used for the immobilization of α-Glu enzyme via two different techniques of entrapment and covalent linking. The entrapment of α-Glu enzyme within Dex cryogels (α-GluE@Dex) ... -
Possible optical counterparts of ULXs in NGC 1672
(John Wiley and Sons Inc, 2023)In this study, we use archival data from Hubble Space Telescope (HST), Chandra, XMM-Newton, and Swift-XRT, to probe the nature of 9 (X1-X9) candidate ultraluminous X-ray sources (ULXs) in NGC 1672. Our study focuses on ... -
Synthesis, characterization, photophysical and surface properties of poly(amino naphthalene) and its poly(azomethine) compound
(John Wiley and Sons Inc, 2023)In this study, 8-((4-hydroxybenzylidene)amino)naphthalene-2-ol (ANAPSB) compound was synthesized from condensation reaction of 8-amino-2-naphthol (ANAP) with 4-hydroxybenzaldehyde and then ANAPSB and 8-amino-2-naphthol ... -
Effect of Gadolinium on Electrical Properties of Polyethyleneimine Functionalized and Nitrogen-Doped Graphene Quantum Dot Nanocomposite Based Diode
(John Wiley and Sons Inc, 2023)Carbon, especially graphene quantum dots (GQDs) based electronics have become an attractive technology in recent years. The controlled modification of the electrical and optoelectronic properties of GQDs by physical/chemical ... -
Preparation of cypress (Cupressus sempervirens L.) essential oil loaded poly(lactic acid) nanofibers
(De Gruyter Open Ltd, 2021)This study investigated the production of poly(lactic acid) (PLA) nanofibers containing cypress (CUP) essential oil (EO) via electrospinning. The nanofibers were produced from polymer solution prepared with different ... -
Assessment of physicochemical and microbiological water quality and bacterial biofilm formation in the coastal waters of Çanakkale, turkey
(Corvinus University of Budapest, 2021)This study, it was aimed to determine water quality based on the physicochemical and microbiological parameters, as well as microbial indicators (in addition to antibiotic-heavy metal resistance and biofilm formation) in ... -
Internal Transcribed Spacer (ITS) Fails Barcoding of the Genus Neotinea Rchb.f. (Orchidaceae)
(Ankara University, 2021)Internal Transcribed Spacer (ITS) is one of the most used barcoding regions for the molecular phylogenetics and barcoding of orchids. Our aim in this study is to test the reliability of ITS on barcoding of closely related ... -
Phosphate removal by Ion exchange in batch mode
(IWA Publishing, 2021)Water with phosphate concentrations above 2 μM may adversely affect aquatic life and human health. In this study, the parameters affecting phosphate removal from aqueous solutions by ion exchange were investigated – contact ... -
Environmentally-friendly preparation of chitosan microspheres and encapsulation studies of cinnamaldehyde: Тowards convenient sustained release system for cinnamaldehyde
(Macedonian Journal of Chemistry and Chemical Engineering, 2021)Chitosan, a biodegradable and biocompatible polysaccharide, is a biopolymer with high potential for biomedical applications. In the scope of this study, chitosan microcapsules were prepared via a green method, without using ... -
Synthesis And Characterization Of Novel 1,2,3-Triazole-Bridged Oxime Polyurethanes Obtained From An Isomannide Derivative
(Macedonian Journal of Chemistry and Chemical Engineering, 2021)Polyurethanes (PUs) are synthesized by the reaction of diisocyanates and diols and are widely used in furniture foams, thermal insulation, coatings, and adhesives. In this work, a 1,2,3-triazole-bridged dioxime (compound ... -
Evaluation of oregano (Origanum vulgare) essential oil supplementation on growth performance, digestive enzymes, intestinal histomorphology and gut microbiota of Black Sea salmon, Salmo labrax
(Sciendo, 2021)This study aimed to determine the effect of dietary oregano (Origanum vulgare) essential oil (EO) on the growth performance, digestive enzyme activity, intestinal histomorphology, and intestinal microbiota of the Black Sea ... -
An Improved Method for Determination of Refractive Index of Dielectric Films from Reflectance Spectrum by Using the Generalized Morse Wavelet
(Sciendo, 2021)The Generalized Morse Wavelet (GMW) algorithm was adapted to determine the refractive index of dielectric film from the reflectance spectrum. A theoretically generated reflectance spectrum in the range of 300-1200 nm ... -
First record of straight-needle pteropod Creseis acicula Rang, 1828 bloom in the Canakkale Strait (NE Aegean Sea, Turkey)
(De Gruyter Open Ltd, 2021)Pteropods are marine pelagic calcifier mollusks sensitive to chemical changes in seawater due to their highly soluble aragonite shells. Increased acidity (reduced pH) of seawater causes difficulties in precipitating their ... -
V355 And: a neglected detached binary in a multiple star system
(Astronomical Institute, Slovak Academy of Sciences, 2021)The analysis of light curves (from TESS, ASAS-SN and KWS databases) of the eclipsing binary V355 And is presented for the first time. The O-C diagram was constructed using all available times of minimum light together with ... -
On the Brink of Extinction: Results of a 20-Year Quest for Eiselt's Pond Turtle (Emys orbicularis eiselti) in Southeastern Turkey
(Chelonian Research Foundation, 2021)Eiselt’s pond turtle (Emys orbicularis eiselti) was described in 1998, based on only 4 museum specimens collected in the 1960s and 1970s. Its distribution range has been massively reduced by large-scale drainage measures ...
