Department of Chemistry

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Toppare, Levent Kamil (478)
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Recent Submissions

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...
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...
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...
Advanced technologies in biodegradable packaging using intelligent sensing to fight food waste Jafarzadeh, Shima; Yildiz, Zeynep; Yildiz, Pelin; Strachowski, Przemyslaw; Forough, MEHRDAD; Esmaeili, Yasaman; Naebe, Minoo; Abdollahi, Mehdi (2024-03-01) The limitation of conventional packaging in demonstrating accurate and real-time food expiration dates leads to food waste and foodborne diseases. Real-time food quality monitoring via intelligent packaging could be an eff...
Competing Intermolecular and Molecule-Surface Interactions: Dipole-Dipole-Driven Patterns in Mixed Carborane Self-Assembled Monolayers White, Katherine E.; Avery, Erin M.; Cummings, Edison; Hong, Zixiang; Langecker, Jens; Vetushka, Aliaksei; Dušek, Michal; Macháček, Jan; Višnák, Jakub; Endres, Jan; Bastl, Zdeněk; Yılmaz, Ayşen; Alexandrova, Anastassia N.; Baše, Tomáš; Weiss, Paul S. (2024-02-27) Carboranedithiol isomers adsorbing with opposite orientations of their dipoles on surfaces are self-assembled together to form mixed monolayers where both lateral dipole-dipole and lateral thiol-thiolate (S-H···S) interact...
Asymmetric Synthesis of Trifluoromethyl Substituted Spiro[Indoline‐3,4′‐Pyrano[2,3‐c]Pyrazole] Derivatives with Organocatalysts Özcan, Bilge Deniz; Kömüşdoğan, Ezgi Bayer; Şahin, Ertan; Tanyeli, Cihangir (2024-02-01) Spirocyclic compounds have always attracted attention due to their presence as a structural core in a wide variety of natural and bioactive molecules and to exhibit pharmaceutical proper ties. An asymmetric synthesis of ...
1,3‐Diynes as Precursors for the Synthesis of Triazene‐ and Diethylaniline‐Bearing Push‐Pull NLOphores Inyurt, Fevzi Can; Dengiz, Çağatay (2024-02-01) Withinthe scopeof this study,a total of eight new NLOphoresof the D-π-A-π-Dtype have been synthesized.This was achievedby applyingclick-type[2+2] cycloaddition-retroelectrocycliza-tion reactionsof unsymmetrical1,3-diyneswi...
Potential effect dietary supplementation of calcium tetraborate in quails exposed to cadmium: Its impact on productive performance, oxidative stress, cecal microflora, and histopathological changes Mutlu, Muhsin; Simsek, Ulku Gulcihan; İflazoğlu, Sera; Yılmaz, Ayşen; Karabulut, Burak; Incili, Canan Akdeniz; Cevik, Aydın; Incili, Gokhan Kursad; Seven, Pinar Tatli; Iflazoglu Mutlu, Seda (2024-01-15) Cadmium (Cd) is a ubiquitous environmental pollutant, and Cd exposure harms human health, agriculture, and animal husbandry. The present study aimed to investigate the potential protective effect of dietary supplementation...
Rational Design of an Acceptor-Chromophore-Relay-Catalyst Tetrad Assembly for Water Oxidation Chalil Oglou, Ramadan; Ulusoy Ghobadi, Turkan Gamze; Saylam, Aytul; Bese, Damla; Bese, Cagri; Yaglioglu, Gul; Özçubukçu, Salih; Ozbay, Ekmel; Karadas, Ferdi (2024-01-01) We report the step-by-step synthesis of a precious metal-free acceptor-chromophore-relay-catalyst tetrad assembly that exhibits a turnover frequency (TOF) of 7.5 × 10−3 s−1 under neutral conditions. Transient absorption sp...
How do we get across? Impact of bridging aromatic units on the optical, electronic, and photovoltaic properties of donor-acceptor polymers Dikbıyık, Dilan Ece; Karakurt, Oğuzhan; Cevher, Duygu; Ozsoy, Gonul Hizalan; Yıldırım, Erol; Cirpan, Ali (2024-01-01) A series of donor - π - acceptor (D- π -A) type polymers (P1, P2, and P3) containing benzodithiophene (BDT) as donor unit and benzothiadiazole (BT) as acceptor unit were designed and synthesized by incorporating diverse el...
Facile preparation of a conjugated polymer-based biosensor for glucose monitoring BULUT, UMUT; Cevher, Şevki Can; SAYIN, Vuslat Öykü; Özbek, Sevgi Sarıgül; Altın, Nevra; Çırpan, Ali; Söylemez, Saniye (2024-01-01) Diabetes is an important public health problem all over the world that affects the quality of life, and its late diagnosis leads to serious complications such as stroke, blindness, limb amputations, and kidney failure. Fab...
Asymmetric aza-Henry reaction of BOC-protected imines with zinc-FAM catalyst Beksultanova, Nurzhan; Doğan, Özdemir (2024-01-01) Derivatives of ferrocenyl-substituted aziridinyl methanol (FAM) ligands were used with zinc metal for asymmetric aza-Henry (nitro-aldol) reaction of N-Boc protected imines with nitroalkanes. At optimized reaction condition...
Enhancing electrochromic supercapacitor electrode performance through different donor compartments in D-A-D type conjugated polymers Cevher, Duygu; Cevher, Şevki Can; Toppare, Levent Kamil; Çırpan, Ali (2023-12-25) Conjugated polymers (CPs), particularly donor-acceptor-donor (D-A[sbnd]D) type polymers, have emerged as promising materials as supercapacitor electrode. In this study, 3-hexylthiophene and ethylenedioxythiophene (EDOT) as...
Fluorometric and colorimetric platforms for rapid and sensitive hydroxychloroquine detection in aqueous samples. Doğan, Kübra; Ünal Taş, Dilek; Persil Çetinkol, Özgül; Forough, MEHRDAD (2023-12-06)
Recently developed benzodithiophene based organic solar cells: A review on materials and strategies Cevher, Duygu; Cevher, Sevki Can; Çırpan, Ali (2023-12-01) Organic solar cells (OSCs) a class of emerging photovoltaics for potentially disruptive technology have made progress significantly over the past two decades owing to their advantages of being cost-effective, having a low...
UV-curable Schiff base-containing polymeric adsorbent for selective and efficient removal of Au(III) from aqueous solutions AYDIN URUCU, OYA; BEYLER ÇİĞİL, ASLI; Zülfikaroğlu, Ayşin; Esentürk, Okan (2023-12-01) UV-curable polymeric adsorbent was prepared using a diacrylate-functionalized hydrazone-oxime monomer (DAFHOM), trimethylolpropane triacrylate (TMPTA), and trimethylolpropane tris(3-mercaptopropionate) (TMPTP) through UV-i...
Tuning stimuli-responsive properties of alginate hydrogels through layer-by-layer functionalization for dual-responsive dual drug release Gündoğdu, Dilara; Alemdar, Cemre; Turan, Cagri; Hazal Husnugil, H.; Banerjee, Sreeparna; Erel Göktepe, İrem (2023-11-05) This study aimed to understand the effect of layer-by-layer (LbL) modification on the stimuli-responsive properties of physical alginate (ALG) hydrogels and examine the potential of LbL-coated hydrogels as dual responsive,...
Fullerene-based mimics of enhanced acetylcholine detection for the diagnosis of Alzheimer's disease Soylemez, Saniye; Dolgun, Volkan; Özçubukçu, Salih (2023-10-01) The design of sensitive and cost-effective enzyme-free sensor systems for the effective electrooxidation of acetylcholine (ACh) plays a key role in following up on Alzheimer's disease. We report a fullerenzyme-based cataly...
Copolymer versus bilayer composite: Electrochemical, electrochromic and capacitive properties of benzotriazole and edot containing conjugated polymers Cevher, Duygu; Cevher, Şevki Can; Çırpan, Ali (2023-10-01) In this study, benzotriazole-based homopolymer (P-TBtz), copolymer (C-TBtzEdot), and bilayer composites (B-TBtzEdot and B-EdotTBtz) were prepared by electrochemical polymerization. B-TBtzEdot and B-EdotTBtz differ only in ...

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