Department of Chemistry, Article

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A New Ratio-Metric pH Probe, "ThiAKS Green" for Live-Cell pH Measurements
Akyol, Ali; Baykal, Doruk; Akdağ, Akın; Sensoy, Ozge; Son, Çağdaş Devrim (2023-3-01)
Deviation of the H+ concentration from optimum values within the organelles is closely associated with irregular cellular functions that cause the onset of various diseases. Therefore, determining subcellular pH values in ...
Low-cost novel X-shaped hole transport materials for efficient perovskite solar cells: Molecular modelling of the core and schiff base effects on photovoltaic and photophysical properties
Abdellah, Islam M.; Yıldırım, Erol; El-Shafei, Ahmed (2023-02-15)
© 2022Eight molecules with D-π-D molecular motifs coded HTM(1-4)a,b were designed as efficient symmetric hole transporting materials for perovskite solar cells. These HTMs are composed of different core moieties, such as s...
Selective monitoring and treatment of neuroblastoma cells with hydrogen sulfide activatable phototheranostic agent
Dirak, Musa; Kepil, Dilay; Almammadov, Toghrul; Elmazoglu, Zubeyir; Cetin, Sultan; Ozogul, Naz; Günbaş, Emrullah Görkem; Kolemen, Safacan (2023-02-01)
© 2022 Elsevier LtdActivity-based photosensitizers (aPSs) are highly attractive as they offer improved selectivity and better therapeutic outcome in the scope of photodynamic therapy (PDT). Here, a hydrogen sulfide (H2S) r...
Xanthene dyes for cancer imaging and treatment: A material odyssey
Karaman, Osman; Alkan, Gizem Atakan; Kizilenis, Caglayan; Akgul, Cevahir Ceren; Gunbas, Gorkem (2023-01-01)
Cancer is still among the leading health issues today, considering the cost, effectiveness, complexity ofdetection/treatment modalities and survival rates. One of the most important criteria for higher survivalrates is the...
Cyano-rich donor-acceptor-donor-type NLOphores containing dialkylated triazene and aniline groups*
Mammadova, Flora; Inyurt, Fevzi Can; Barsella, Alberto; Dengiz, Çağatay (2023-01-01)
Continuous progress on the synthesis of push-pull chromophores is related to their outstanding optoelectronic properties. Expanding scope is a challenge due to the instability of targets and long synthetic strategies. Here...
Dark conduction mechanisms of PTQBDT based heterojunction diode
Gullu, H. H.; Yildiz, D. E.; Hacioglu, S. O.; Çırpan, Ali; Toppare, Levent Kamil (2023-01-01)
Al:LiF/PTQBT:PCBM/PEDOT:PSS/ITO/glass organic-based diode is fabricated with different weight ratios in PTQBT:PCBM active layer. The diodes D1, D2 and D3 are prepared using the precursor solution for spin coating process a...
A flexible carbon nanofiber and conjugated polymer-based electrode for glucose sensing
BULUT, Umut; Oyku Sayin, Vuslat; Altin, Yasin; Can Cevher, Sevki; Çırpan, Ali; Celik Bedeloglu, Ayse; Soylemez, Saniye (2023-01-01)
© 2022 Elsevier B.V.Herein, a specific and stable biosensor for glucose using a flexible, modified electrode with a carbon nanofiber (CNF) and a novel conjugated polymer including three moieties of benzotriazole, benzodith...
Roadmap to Design Mechanically Robust Copolymer Hydrogels Naturally Cross-Linked by Hydrogen Bonds
Erkoc, Cagla; Yıldırım, Erol; Yurtsever, Mine; Okay, Oğuz (2022-12-13)
© 2022 The Authors. Published by American Chemical Society.Although several mechanically strong physical hydrogels bearing H-bond donor and acceptor groups have been reported over the past years, the effect of the complex ...
Boosting the efficiency of organic solar cells via plasmonic gold nanoparticles and thiol functionalized conjugated polymer
Karakurt, Oğuzhan; Alemdar, Eda; Erer, Mert Can; Cevher, Duygu; Gulmez, Selin; Taylan, Umut; Cevher, Sevki Can; Ozsoy, Gonul Hizalan; Ortac, Bulend; Çırpan, Ali (2022-12-01)
© 2022 Elsevier LtdConjugated polymers are promising low-cost, lightweight, and flexible candidates for scalable photovoltaic applications to establish decarbonized energy technologies. However, they possess deficiencies i...
Recent progress in wearable extractive sampling technology
Kahremanoglu, Kubra; Kurtalan, Hazal Tosun; Eroglu, Ahmet Emin; Boyacı, Ezel (2022-12-01)
The inevitable incline in the daily exposure to various chemicals has raised a necessity to monitor the body's exposure and biological responses to these stimuli more comprehensively and easily; conceivably, integrating no...
Organic Charge Transfer Cocrystals as Additives for Dissipation of Contact Charges on Polymers
Ekim, Sunay Dilara; Kaya, Gorkem Eylul; Daştemir, Murat; Yıldırım, Erol; Baytekin, Hasan Tarık; BAYTEKİN, BİLGE (2022-12-01)
Common polymers can accumulate surface charges through contact, a phenomenon known since ancient times. This charge accumulation can have detrimental consequences in industry. It causes accidents and yields enormous econom...
Palladium nanoparticles supported on cobalt(II,III) oxide nanocatalyst: High reusability and outstanding catalytic activity in hydrolytic dehydrogenation of ammonia borane
Akbayrak, Serdar; Özkar, Saim (2022-11-01)
A new palladium(0) nanocatalyst is developed to enhance the catalytic efficiency of precious metal catalysts in hydrogen generation from the hydrolytic dehydrogenation of ammonia borane. Magnetically separable Pd-0/Co3O4 n...
Peptide-based diagnostic and therapeutic agents: Where we are and where we are heading?
PARLAK KHALİLY, MELEK; Soydan, Medine (2022-11-01)
Peptides are increasingly present in all branches of medicine as innovative drugs, imaging agents, theragnostic, and constituent moieties of other sophisticated drugs such as peptide-drug conjugates. Due to new development...
Hunting black color via absorption engineering: EDOT and thiophene-benzothiadiazole based black-to-transmissive copolymer and its electrochromic device application
Ergün, Emine Gül Cansu; Akbayrak, Merve (2022-11-01)
Neutral state black electrochromics are prominent materials for smart applications such as displays, car rear views, e-papers etc. This work has aimed to obtain a neutral state black electrochromic polymer, by tuning the o...
Benzodithiophene bearing conjugated polymer-based surface anchoring for sensitive electrochemical glucose detection
BULUT, Umut; SAYIN, Vuslat Öykü; Cevher, Sevki Can; Çırpan, Ali; Soylemez, Saniye (2022-10-01)
An amino-functionalized, conjugated polymer (P(BDBT)) modified glassy carbon electrode (GCE) was employed as an immobilization platform for glucose oxidase (GOx) enzyme to assemble a novel glucose biosensor. Amino groups a...
Design Principles for the Acceptor Units in Donor-Acceptor Conjugated Polymers
Haciefendioglu, Tugba; Yıldırım, Erol (2022-10-01)
More than 50 different acceptor units from the experimental literature have been modeled, analyzed, and compared by using the computationally extracted data from the density functional theory (DFT) perspective for tetramer...
Isoniazid Linked to Sulfonate Esters via Hydrazone Functionality: Design, Synthesis, and Evaluation of Antitubercular Activity
KOÇAK ASLAN, EBRU; HAN, MUHAMMED İHSAN; Krishna, Vagolu Siva; Tamhaev, Rasoul; Dengiz, Çağatay; DOĞAN, ŞENGÜL DİLEM; Lherbet, Christian; Mourey, Lionel; Tonjum, Tone; GÜNDÜZ, MİYASE GÖZDE (2022-10-01)
Isoniazid (INH) is one of the key molecules employed in the treatment of tuberculosis (TB), the most deadly infectious disease worldwide. However, the efficacy of this cornerstone drug has seriously decreased due to emergi...
Organocatalytic enantioselective synthesis of dihydronaphthofurans and dihydrobenzofurans: reaction development and insights into stereoselectivity
Susam, Zeynep Dilşad; Ozcan, Bilge Deniz; Kurtkaya, Enis; Yıldırım, Erol; Tanyeli, Cihangir (2022-10-01)
Squaramide/cinchona alkaloid-derived bifunctional organocatalysts are in high demand in asymmetric transformations. Bifunctional quinine-derived sterically encumbered squaramide (H-bond donor) organocatalysts were used to ...
Electrochemical biosensor based on three components random conjugated polymer with fullerene (C60)
KURBANOĞLU, SEVİNÇ; Cevher, Sevki Can; Toppare, Levent Kamil; Çırpan, Ali; Soylemez, Saniye (2022-10-01)
© 2022 Elsevier B.V.Herein, a conjugated polymer and fullerene bearing architecture-based electrochemical Tyrosinase (Tyr) enzyme inhibition biosensor for indomethacin (INDO) drug active compound has been developed. For th...
Effect of tetraethylene glycol side chain conformation on chiroptical properties of chirality-induced benzocoumarin
Öztürk, Perihan; Akdağ, Akın (2022-10-01)
Coumarins are multifaceted molecules with compelling fluorescence features. Along with biocompatible properties, they have recently been used in chiroptical studies. The chirality induction to benzo[f]coumarin moiety at th...
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