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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...
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...
Assessment of thermal and solvent stable SPME fibers for metabolomics studies performed in living systems Kahremanoğlu, Kübra; Jaroch, Karol; Szeliska, Paulina; Filipiak, Wojciech; Charemski, Bartłomiej; Żuchowska, Karolina; Çetin, Enes; Eroğlu, Ahmet E.; Bojko, Barbara; Boyacı, Ezel (2025-05-15) Solid phase microextraction (SPME), as a sampling/sample preparation technique, offers unique solutions for the most challenging applications, including metabolomics studies of living systems. However, for global metabolom...
Synthesis, molecular modeling, DFT studies, and enantioseparation of tetrahydro-4H-chromene derivatives with calcium channel blocking activity KOÇAK ASLAN, EBRU; Karagüzel, Ayşe; Lam, Kevin; Dengiz, Çağatay; Huang, Sun; Burk, Ryan Jacob; Salehi, Reza; Sajeevan J, Siddharth Jaya; Zamponi, Gerald W.; Wolber, Gerhard; Armstrong, Daniel W.; Gündüz, Miyase Gözde (2025-05-15) Calcium channel blockers are considered effective therapeutics in cardiovascular and neurological disorders. Herein, we replaced the nitrogen atom of 1,4-dihydropyridines (DHPs), the most popular group of calcium channel b...
Base-Mediated Synthesis of Imidazole-Fused 1,4-Benzoxazepines via 7-exo-dig Cyclizations: Propargyl Group Transformation. Korkmaz Cokol, Nalan; İnyurt, Fevzi Can; Öktem, İpek; ŞAHİN, Ertan; Sari, Ozlem; Dengiz, Çağatay; Balci, Metin (2025-04-04) Herein, we describe the synthesis of a series of imidazole-fused 1,4-benzoxazepines using 7-exo-dig cyclizations. Two sets of substrates, one containing disubstituted alkyne functional groups and the other featuring termin...
The Role of Polyisobutylene-Bis-Succinimide (PIBSI) Dispersants in Lubricant Oils on the Deposit Control Mechanism Özdemir, Erhan; Kan, Esra; Guo, Binbin; Pashkovski, Eugene; Agiral, Anil; Yıldırım, Erol (2025-04-01) Molecular modeling calculations for the design and improvement of next-generation additives for motor oils have reached a level that can support and improve experimental results. The regulation of insoluble sludge nanopart...
Functionalized Phenyl Methanaminium Salts Provide Highly Stable Perovskite Solar Cells Yaşa, Mustafa; Celik, Esra Bag; Gao, Xiao-Xin; Karabağ, Zeynep Gözükara; Gunes, Ummugulsum; Syzgantseva, Olga A.; Syzgantseva, Maria A.; Zhong, Liping; Züttel, Andreas; Dyson, Paul J.; Nazeeruddin, Mohammad Khaja; Toppare, Levent Kamil; Yerci, Selçuk; Günbaş, Emrullah Görkem (2025-03-01) One of the leading approaches to enhancing the performance and stability of perovskite solar cells (PSCs) involves passivating the perovskite surface and grain boundaries with large ammonium salts. Here, we report the synt...
Surface Engineering of MXene and Functional Fullerenols for Cancer Biomarker ‘eIF3d’ Soyler, Dilek; Dolgun, Volkan; Çetin, Kemal Önder; Khan, Yaqoob; Guler Celik, Emine; Özçubukçu, Salih; Ünalan, Hüsnü Emrah; Timur, Suna; Soylemez, Saniye (2025-03-01) Selective and sensitive detection of eIF3d (eukaryotic translation initiation factor 3 complex, subunit D), a protein biomarker, is of fundamental significance for the diagnosis of various cancers. Here, we report an elect...
Eu3+ doped MB4O7 (M= Ca and Sr) nanoparticles for cancer treatment Yıldırım, İpek; Çetin Altındal, Damla; Yılmaz, Ayşen (2025-03-01)
Biginelli dihydropyrimidines and their acetylated derivatives as L-/T-type calcium channel blockers: Synthesis, enantioseparation, and molecular modeling studies GÜNDÜZ, MİYASE GÖZDE; Dengiz, Çağatay; Denzinger, Katrin; Huang, Sun; Lee, J. T.; Nafie, Jordan W.; Armstrong, Daniel W.; Wolber, Gerhard; Zamponi, Gerald W. (2025-03-01) Biginelli dihydropyrimidines (DHPMs) are considered superior over 1,4-dihydropyridines (DHPs) in terms of both light and metabolic stabilities. Nevertheless, DHPs dominate the market as the most prescribed calcium channel ...
Design, strategies and recent advances in conjugated polymers for supercapacitors Cevher, Duygu; Çırpan, Ali (2025-02-15) The discovery of clean and renewable energy sources has necessitated the advancement of efficient energy storage technologies and devices to ensure sustainable economic development. Batteries and supercapacitors play signi...
Thermoluminescence characterization of CaB4O7:Al (CBT:Al)synthesized by solid-state method İflazoğlu, Sera; Emir Kafadar, Vural; Yılmaz, Ayşen (2025-02-01) Continuous and systematic research into calcium tetraborate (CTB) is essential due to its potential as a promising material for dosimetric applications. This study focuses on developing a novel phosphor by doping CTB with ...
Effect of EDOT contribution on the electrochromic and capacitive properties of edot-carbazole based electrochromic polymer: Electrochromic and supercapacitor device applications Cansu Ergun, Emine Gul; Önal, Ahmet Muhtar (2025-01-10) 3,4-ethylenedioxythiophene (EDOT) based donor-acceptor-donor (DAD) type conjugated polymers generally have extraordinary electrochromic properties due to the excellent nature of the EDOT unit. This work investigates the el...
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...
A Heterodox Approach for Designing Iron Photosensitizers: Pentacyanoferrate(II) Complexes with Monodentate Bipyridinium/Pyrazinium-Based Acceptor Ligands Schmidt, Heiner; Oglou, Ramadan C.; Tunçer, Hüseyin O.; Ghobadi, Turkan G. U.; Tekir, Şafak; Sertcelik, Kubra N. O.; Ibrahim, Abdelrahman; Döhler, Lotta; Özçubukçu, Salih; Kupfer, Stephan; Dietzek-Ivanšić, Benjamin; Karadaş, Ferdi (2025-01-01) The main obstacle in replacing well-established precious ruthenium photosensitizers with earth-abundant iron analogs is the short excited state lifetimes of metal-to-ligand charge transfer (MLCT) states due to relatively w...
Facile synthesis of unknown 6,7-dihydrofuro[3,4-c]pyridines and 3,4-diaryloylpyridines from N-homopropargylic β-enaminones Yılmaz, Elif Serel; Kaya, Kerem; Zora, Metin (2025-01-01) In this paper, we have uncovered a new reaction of N-homopropargylic β-enaminones, i.e. N-(4-phenyl-3-butynyl)-β-enaminones. When subjected to a reaction with excess molecular iodine or N-iodosuccinimide in the presence of...
Computational Identification of Potential Organocatalysts (CIPOC) Reveals a 2-aminoDMAP/Urea Catalyst Superior to Its Thiourea Analogue Alsancak-Koca, Sezen; Çamlısoy, Yeşim; Bakırcı, İrem; Işık, Murat; Çelebi-Ölçüm, Nihan; Tanyeli, Cihangir (2025-01-01) Asymmetric organocatalysis by bifunctional acid- and base-type small organic molecules has emerged as a promising way to enhance stereoselective organic transformations since the beginning of this millennium. Takemoto’s te...
Synthesis and electropolymerization of a selenophene based chemiluminescent monomer and its use in blood detection Balci, Burcu; Çakal, Deniz; Cihaner, Atilla (2025-01-01) A new selenophene based trimeric chemiluminescent compound, namely 5,7-di(selenophen-2-yl)-2,3-dihydrothieno[3,4-d]pyridazine-1,4-dione (S2T-Lum), was synthesized in two steps via electron donor-acceptor-donor approach. It...

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