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3,4-Ethylenedioxythiophene-quinoxaline based polymer electrode for symmetric supercapacitors on rigid and flexible platforms Cansu Ergun, Emine Gul; Önal, Ahmet Muhtar (2025-12-30) The increasing demand for lightweight, flexible, and reliable energy storage devices drives the exploration of advanced electrode materials for supercapacitors. Conjugated donor-acceptor polymers are promising candidates b...
Assessment of thermal and solvent stable SPME fibers for volatilome investigation through in vitro experiments with cancer cell lines Filipiak, Wojciech; Çakmakçı, Merve; Sevgen, Sılanur; Szeliska, Paulina; Jaroch, Karol; Kara, Atakan; Kahremanoğlu, Kübra; Bojko, Barbara; Boyacı, Ezel (2025-12-08) Background: solid phase microextraction (SPME) was introduced to bioanalysis years ago, but still, it did not find its place in routine analysis, despite the many advantages it offers. The limited number of commercial devi...
Engineered Fullerene-Based Enzyme Mimics for Enhanced Sensing of Aqueous-Phase Reactions Using Liquid Crystals Karaman, Deniz; Akar, Elif; Saylam, Aytul; Özçubukçu, Salih; Büküşoğlu, Emre (2025-11-13) The responsive interfaces formed by thermotropic liquid crystals (LC) and aqueous phases have been utilized in reactive and catalytic applications, yet their utilization in enzymatic studies has been dominated by natural e...
An All-Conjugated, PM6-Based Block Copolymer Enables Stable Nanoparticle Dispersions in Methanol Daum, Manuel; Aydan Alkan, Ecem; Gubanov, Kirill; Rocha-Ortiz, Juan S.; Maraslioglu, Cem; Çırpan, Ali; Fink, Rainer H.; Hauch, Jens; Heumuller, Thomas; Brabec, Christoph J. (2025-11-04) Organic semiconductors are commonly processed using toxic halogenated or aromatic solvents due to their poor solubility in less harmful alternatives, leading to significant environmental and health concerns. Although there...
Impact of Azobenzene Side Chains on the Ultraviolet–Visible and Fluorescence Properties of Coumarin Derivatives Akdis, Yasemin; Akdağ, Akın (2025-10-28) The effect of photoswitchable compounds on the light-emitting properties of nanoparticles has been drawing increasing attention. To investigate the effect of photoswitchable azobenzene units on the photophysical properties...
Drastic Impact of Donor Substituents on Xanthenes in the PDT of Glioblastoma Karaman, Osman; Yesilcimen, E.; Forough, M.; Elmazoglu, Z.; Günbaş, Emrullah Görkem (2025-10-01) Even though significant progress has been made in treating various cancer types, brain cancers lag drastically. Several factors contribute, led by operational difficulties, the blood-brain barrier, and the tendency of recu...
Effect of Ag Doping on Thermoluminescence Properties and Radiation Dosimetry Performance of MgB₄O₇ Toktamis, Dilek; Iflazoglu, Sera; Toktamis, Hüseyin; Yılmaz, Ayşen; Yazıcı, Ahmet Necmeddin (2025-10-01) This study investigates the thermoluminescence (TL) properties of silver (Ag)-doped magnesium tetraborate (MgB₄O₇, MBO) for radiation dosimetry applications. MBO, known for its tissue-equivalent properties, was synthesized...
High-performance bifunctional electrochromic-supercapacitor devices based on indole derivative copolymerized with 3,4-ethylenedioxythiophene Hosseini, Shadi; UDUM, YASEMİN; Toppare, Levent Kamil (2025-10-01) The integration of energy storage and electrochromic functionalities into a single device holds great promise for smart windows, displays, and energy-efficient systems. This study presents the first bifunctional electrochr...
Catalytic Application of a Zwitterionic Polymeric Network for Hydrogen Generation via Sodium Borohydride Methanolysis Gokkus, Kutalmis; KAYA, ŞEFİKA; Gur, Mahmut; YILDIZ, DERYA; Yıldırım, Erol; DEMİR KIVRAK, HİLAL; BÜTÜN, VURAL (2025-10-01) Hydrogen energy is widely regarded as one of the most promising alternatives to fossil fuels. This study focuses on the synthesis of an environmentally friendly zwitterionic polymer catalyst, Poly(Quaternized-2-diethylamin...
Liquid Crystals that Respond to the Aqueous Phase Reactions Catalyzed by Synthetic Enzyme Mimics Karaman, Deniz; Saylam, Aytul; Akar, Elif; Özçubukçu, Salih; Büküşoğlu, Emre (2025-09-15) Liquid crystal (LC)-aqueous soft interface sensors have shown potential toward a wide range of analytes, which also include tracking of their reactions. While these sensors have shown promise in studying enzymatic activity...
Functional Bioimaging Probes: Fluorescent Conjugated Polymer Nanoparticles Coupled with Pleural Fluid-Derived Peptides and Proteins TOK, KEREM; Moulahoum, Hichem; BARLAS, FIRAT BARIŞ; Karakurt, Oğuzhan; Ucar, Nursima; AKSU, DİDEM; Yeniterzi, Dilara; Ozufuklar, Ozge; Gursoy, Dilara; SÖYLEMEZ, SANİYE; Guler Celik, Emine; Çırpan, Ali; AKÇAM, TEVFİK İLKER; Turhan, Kutsal; ZİHNİOĞLU, FİGEN; TİMUR, SUNA (2025-09-12) Thiol-functionalized conjugated polymers offer a versatile platform for designing fluorescent nanomaterials with biomedical relevance. In this study, a thiol modified conjugated polymer composed of benzoxadiazole (BO) and ...
Structural, Optical, and Neutron Sensitivity Properties of Yb<SUP>3+</SUP>/Tb<SUP>3+</SUP> Codoped Alkaline Earth Tetraborates Abacı, Özde Ceren; Esentürk, Okan; Altindal, Damla Cetin; Yılmaz, Ayşen (2025-09-10) This study explores the synthesis, structural properties, and multifunctional potential of Yb3+/Tb3+ codoped alkaline earth tetraborates (CaB4O7, MgB4O7, and SrB4O7) synthesized via solid-state (SS), solution combustion (S...
Synthesis and design of functional fullerenol-based electrochemical nanobiosensor to examine the inhibition effects of anti-Alzheimer drug active pyridostigmine on acetylcholinesterase Soyler, Dilek; Dolgun, Volkan; KURBANOĞLU, SEVİNÇ; Özçubukçu, Salih; Soylemez, Saniye (2025-09-01) Glutamic acid functionalized fullerenol (F-Glu) based electrochemical AChE enzyme biosensor (GE/F-Glu/AChE) was utilized for the detection of acetylthiocholine chloride and pyridostigmine for the first time. The performanc...
Evaluation of performance and matrix compatibility of mixed mode C18-SCX SPME fibers for compounds with different physicochemical properties Tascon, Marcos; Boyacı, Ezel; Reyes-Garcés, Nathaly; Pawliszyn, Janusz (2025-08-01) Solid-phase microextraction (SPME) has evolved significantly since its inception, yet challenges remain in developing coatings fully compatible with LC-MS that combine broad polarity coverage with biocompatibility for comp...
Investigation of the Role of Silicon in Donor Moiety in D-π-A Type Conjugated Polymers With Selenophene Bridges for Solar Cell Applications Karakurt, Oğuzhan; Demir Arabacı, Elif; Oral, Pelin; Sahinaslan, Sedanur; Maraslioglu, Cem; Yildiz, Dilber Esra; Çırpan, Ali (2025-07-04) In this study, the influence of silicon incorporation into donor moieties of donor-acceptor (D-A) type conjugated polymers with selenophene pi-bridges for organic solar cell (OSC) applications was investigated. Two novel p...
Thermoluminescence behavior of Ce/Dy co‑doped BaB4O7 polycrystals at different Ce concentrations Yılmaz, Ayşen; Toktamış, Hüseyin; Toktamış, Dilek; İflazoğlu, Sera (2025-07-01)
Evaluating the influence of carbon quantum dots on starch-based bioplastics: Toward potential food packaging applications Jafarzadeh, Shima; Golgoli, Mitra; Qazanfarzadeh, Zeinab; Forough, Mehrdad; Wu, Peng; Timms, Wendy; Barrow, Colin J.; Naebe, Minoo; Zargar, Masoumeh (2025-07-01) Developing biodegradable food packaging films is crucial for reducing dependence on petroleum-based plastics. In this study, nitrogen-doped carbon quantum dots (CDs) were synthesized from citric acid and ethylenediamine vi...
The role of donor units in band gap engineering of donor–acceptor conjugated polymers Haciefendioglu, Tugba; Yıldırım, Erol (2025-07-01) Most used 60 distinct electron-donating units have been modelled, analyzed, and compared using density functional theory (DFT) for tetramer structures in the form (D–B–A–B)4 with fixed acceptor and bridge units, where D, A...
Protocol for the upgraded high-throughput SPME system for biocompatible in vitro extraction from small volume for metabolomics and pharmaceutical assays Szeliska, Paulina; Jaroch, Karol; Charemski, Bartłomiej; Kahremanoğlu, Kübra; Çetin, Enes; Boyacı, Ezel; Bojko, Barbara (2025-06-01) This study presents an updated application of Solid Phase Microextraction (SPME) technology for high-throughput, time-course metabolomic analysis in in vitro cell culture models. SPME, a versatile and minimally invasive sa...
A combined experimental and computational study of electron transfer in the light harvesting perylenediimide-poly(p-phenylene) supramolecular dyad El-Khouly, Mohamed E.; Kobaisy, Ahmed M.; Yıldırım, Erol; El-Shafei, Ahmed (2025-06-01) A novel supramolecular dyad, composed of the electron-accepting N,N’-di(2-(trimethylammoniumiodide) ethylene) perylenediimide (TAIPDI) and the electron donating electron-donating poly[2,5-bis(3-sulfonatopropoxy)-1,4-phenyl...

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