Department of Chemistry

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Recent Submissions

Design and synthesis of heterocycle-based push-pull NLOphores: A comprehensive study of their linear and non-linear optical properties Karagöllü, Başak; Şengöz, Tolga Orçun; Kayaş, Hazal; Erden, Kübra; ŞAHİN, Ertan; Esentürk, Okan; Dengiz, Çağatay (2025-01-01) Push-pull chromophores, with strong intramolecular charge transfer (ICT), exhibit high ground-state polarization, driving strong NLO responses. The donor and acceptor abilities of the groups in the investigated compounds i...
Synthesis and thermoluminescence characterization of either Cu- or Ag-doped lithium triborate İflazoğlu, Sera; Sevastidis, I.; Konstantinidis, P.G.; Yılmaz, Ayşen; Kitis, G.; Polymeris, G.S. (2024-12-01) Lithium Triborate (LiB3O5 or LTB), is characterized by chemical stability and good mechanical properties, and it has an effective atomic number (Zeff = 7.39) close to that of the human tissue (Zeff = 7.42), making it a pot...
Design and performance of sulfur and selenium-substituted triarylboron D3-A TADF emitters for OLED applications Karakurt, Oğuzhan; Demirgezer, Elif Fatma; Daştemir, Murat; Cakmaktepe, Semih Can; Miranda-Salinas, Hector; Aksoy, Erkan; Danos, Andrew; Monkman, Andrew; Yıldırım, Erol; Çırpan, Ali (2024-11-01) This study presents the design, synthesis, and comprehensive theoretical and photophysical analysis of two new D3-A type thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diode (OLED) appl...
Development of Functional Cellulose Microspheres With Affinity Towards Bacterial Cells and Liposomes Containing Negatively Charged Phospholipids Türkyılmaz, Serhan; Yılmaz, Ozan; Şahin, Fulya; Akbulut, Doğan; Demirel, Kaan (2024-09-18)
Synthesis and Optical Characterization of Hydrazone-Substituted Push-Pull-Type NLOphores Erden, Kübra; Soyler, Dilek; Barsella, Alberto; Sahin, Onur; Soylemez, Saniye; Dengiz, Çağatay (2024-09-10) Two distinct families of NLOphores featuring hydrazone donors were synthesized using click-type [2 + 2] cycloaddition retroelectrocyclizations (CA-RE). Despite the limitations in the substrate scope, it was shown for the f...
Synthesis and photoluminescence properties of Ce3+/Tb3+ and Eu3+ ions doped GdB3O6/Ca10(PO4)6(OH)2 Core/Shell particles as well as its cytotoxicity against colon cancer cells Yılmaz, Ayşen; Banerjee, Sreeparna; Güderer, İsmail; Uzun, Mehmet Burak (2024-09-01) In this study, Ce3+/Tb3+ co-doped, Eu3+ doped GdB3O6 phosphor particles were synthesized by sol-gel method,coated with hydroxyapatite (HAP) and loaded with doxorubicin. Different chelating agents and surfactants(Cetyltrime...
Striped Phase Formations of Alkanethiols in Au(111)/Graphene/SAM and Au(111)/SAM/Graphene Heterolayered Structures: Insights from vdW-DFT Calculations Yortanlı, Merve; Danışman, Mehmet Fatih; Mete, Ersen (2024-08-01) The heterolayered Au(111)/Graphene/Alkanethiol and Au(111)/Alkanethiol/Graphene structures have been investigated using van der Waals supplemented density functional theory (vdW-DFT) calculations considering striped phases...
Human estrogen receptor alpha (ERα) targeted cyclic peptides inhibit cell growth and induce apoptosis in MCF-7 cells ŞENTÜRK, HAKAN; Dedeakayoğulları, Huri; Marion, İlke U.; Özçubukçu, Salih; Kesici, Mehmet Seçkin; Beyge, Şeyma Ünsal; Acar, Muradiye; Genel, Merve Erkısa; AKBAŞ, FAHRİ; Ulukaya, Engin (2024-08-01) Objectives: Human estrogen receptor alpha (ERα) is considered an important target, especially in the treatment of breast cancer, as it has a vital role in cancer development. ERα-targeted therapies generally target the lig...
Fluorine atom effect in D-A-D type conjugated small molecules and polymers Önal, Ahmet Muhtar; Çakal, Deniz; Boztaş, Yalçın (2024-07-24) A new series of monomers in the donor-acceptor-donor array was synthesized by coupling of mono- and difluorinated benzothiadiazole (BT) acceptor units with didecyl-substituted 3,4-propylenedioxythiophene (ProDOT (P)) donor...
Novel electrospun-based extractive probes for rapid determination of clinically important compounds in human plasma Temel, Ezgi Rana; Eroğlu, Ahmet E.; SALİH, BEKİR; Boyacı, Ezel (2024-07-11) Background: Coated blade spray (CBS) represents an innovative approach that utilizes solid-phase microextraction principles for sampling and sample preparation. When combined with ambient mass spectrometry (MS), it can als...
Synthesis, molecular modeling, DFT studies, and EPR analysis of 1,4-dihydropyridines as potential calcium channel blockers KOÇAK ASLAN, EBRU; Lam, Kevin; Dengiz, Çağatay; Denzinger, Katrin; Dicle Erdamar, Isık Yesim; Huang, Sun; Zamponi, Gerald W.; Wolber, Gerhard; GÜNDÜZ, MİYASE GÖZDE (2024-07-05) 1,4-Dihydropyridines (DHPs) are widely recognized as a highly effective class of L-type calcium channel blockers that offer significant therapeutic potential in managing cardiovascular conditions. Furthermore, their abilit...
InCl3-Catalyzed One-Pot Synthesis of Pyrrolo/Indolo- and Benzooxazepino-Fused Quinoxalines Aksakal, Nuray Esra; Zora, Metin (2024-07-01) In this paper, we describe an efficient InCl3-catalyzed two-component reaction of 1-(2-aminophenyl)pyrroles/indoles and 2-propargyloxybenzaldehydes for the direct synthesis of 12bH-benzo[6,7]1,4-oxazepino[4,5-a]pyrrolo/ind...
Theoretical investigation on graphene induced self-alignment of donor-acceptor structures Haciefendioglu, Tugba; Aytemiz, Muhammet E.K.; Korhan, Hamza; Yıldırım, Erol (2024-06-20) Non-covalent functionalization of graphene (Gr) with conducting polymers (CPs) improves the electrical and mechanical properties of both materials owing to the noncovalent π-π stacking interaction between the surface and t...
Evaluation of Novel Spiro-pyrrolopyridazine Derivatives as Anticancer Compounds: In Vitro Selective Cytotoxicity, Induction of Apoptosis, EGFR Inhibitory Activity, and Molecular Docking Analysis Atmaca, Harika; Ilhan, Suleyman; Çamli Pulat, Çisil; Dündar, Buse Ayşen; Zora, Metin (2024-06-04) Cancer, characterized by uncontrolled cell proliferation, remains a global health challenge. Despite advancements in cancer treatment, drug resistance and adverse effects on normal cells remain challenging. The epidermal g...
Sialic Acid-Functionalized Gold Nanoparticles for Sensitive and Selective Colorimetric Determination of Serotonin Avcı, Begüm; Akpınar, Yeliz; Ertaş, Gülay; Volkan, Mürvet (2024-06-04) We present a novel colorimetric method inspired by nature’s complex mechanisms, capable of selectively determining serotonin with high sensitivity. This method exploits the inherent binding affinity of serotonin with siali...
Structural proteomics of a bacterial mega membrane protein complex: FtsH-HflK-HflC Akkulak, Hatice; İnce, H. Kerim; Goc, Gunce; Lebrilla, Carlito B.; Kabasakal, Burak V.; Özcan Kabasakal, Süreyya (2024-06-01) Recent advances in mass spectrometry (MS) yielding sensitive and accurate measurements along with developments in software tools have enabled the characterization of complex systems routinely. Thus, structural proteomics a...
In vitro study on the competitive reactions between arsenite and selenite with glutathione Özkan, Canan Höçük; ATAKAY, MEHMET; SALİH, BEKİR; Ertaş, Gülay (2024-05-01) Exposure to arsenic can cause various biological effects by increasing the production of reactive oxygen species (ROS). Selenium acts as a beneficial element by regulating ROS and limiting heavy metal uptake and translocat...
Application of fiber loop ringdown spectroscopy technique for a new approach to beta-amyloid monitoring for Alzheimer Disease’s early detection KAYA, BURAK MALİK; ÖZ, SEMİH; Esentürk, Okan (2024-05-01) A novel fiber optic biosensor was purposed for a new approach to monitor amyloid beta protein fragment 1-42 (Aβ42) for Alzheimer’s Disease (AD) early detection. The sensor was fabricated by etching a part of fiber from sin...
Coating effects of a strain sensor on durability and sensitivity using the fiber loop ringdown spectroscopy technique KAYA, BURAK MALİK; Esentürk, Okan; AŞICI, CELAL; Sarac, Umut; DINDIŞ, GÖKHAN; BAYKUL, MEVLANA CELALETTİN (2024-05-01) A sensor region in a single-mode optical fiber loop was created and utilized in order to study the coating effect on sensor durability and system sensitivity by the Fiber Loop Ringdown Spectroscopy (FLRDS) technique. The s...
Layer-by-layer assembly of chitosan/alginate thin films containing Salmonella enterica bacteriophages for antibacterial applications Tidim, Gökçe; Guzel, Mustafa; Soyer, Yeşim; Erel Göktepe, İrem (2024-03-15) The emergence of antibiotic resistant bacteria and the ineffectiveness of routine treatments inspired development of alternatives to biocides for antibacterial applications. Bacteriophages are natural predators of bacteria...

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