Department of Chemistry, Article

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Toppare, Levent Kamil (423)
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Article (27)

Recent Submissions

Online lubricant degradation monitoring using contact charging of polymers
Karluk, Azimet A.; Ekim, Sunay D.; BAYTEKİN, BİLGE; Baytekin, Hasan Tarık (2022-05-01)
Lubrication of machine parts is necessary to prevent friction and wear in machine operation. However, oxidation of lubricants upon operation changes their chemical and physical properties and causes lubrication performance...
Investigation the effect of π bridge and side chain on photovoltaic properties of benzodithiophene and quinoxaline based conjugated polymers
Taşkaya Aslan, Sultan; Alemdar, Eda; Hacıefendioğlu, Tuğba; UDUM, YASEMİN; Toppare, Levent Kamil; Yıldırım, Erol; Çırpan, Ali (2022-04-15)
© 2022 Elsevier LtdA series of donor–acceptor type alternative polymers containing 2D-BDT and 1D-BDT as the donors and quinoxaline as the acceptor were successfully obtained by Stille coupling reactions. Synthesized polyme...
3-Alkynylindoles as Building Blocks for the Synthesis of Electronically Tunable Indole-Based Push-Pull Chromophores.
ERDEN, KÜBRA; Dengiz, Çağatay (2022-03-18)
© 2022 American Chemical Society.In this study, two different classes of push-pull chromophores were synthesized in modest to excellent yields by formal [2+2] cycloaddition-retroelectrocyclization (CA-RE) reactions. N-Meth...
Isoquinolinedione-urea hybrids: Synthesis, antibacterial evaluation, drug-likeness, molecular docking and DFT studies
In the present study, we applied the molecular hybridization approach to combine isoquinolinedione and urea pharmacophores in the same molecules. The hybrid compounds (IU1-IU14) were obtained by the reaction of 2-aminohomo...
Multipurpose acetic acid functionalized carbazole derivatives: Synthesis, electrochemical properties and electrochromic device applications
Özdemir Hacıoğlu, Şerife; YİĞİT, DENİZ; Akbey, Tuba E.; UDUM, YASEMİN; GÜLLÜ, MUSTAFA; DEPCİ, TOLGA; Toppare, Levent Kamil (2022-03-01)
In this study, synthesis of two multifunctional acetic acid functionalized carbazole bearing monomers; 243,6-bis(2,3-dihydrothieno [3,4-b] [1,4]dioxin-5-yl)-9H-carbazol-9-yl)acetic acid (Ml) and 3,6-dithien-2-yl-9H car baz...
Synthesis of azobenzene-containing macrocycles exhibiting unexpected fluorescence
Hosgor, Ege; Akdağ, Akın (2022-03-01)
Polyfunctional macrocycles have been studied extensively for their responsive properties. In this study, three electron- deficient novel azo-containing crown ethers were successfully synthesized. The synthesized macrocycle...
Plant protein-based food packaging films; recent advances in fabrication, characterization, and applications
Hadidi, Milad; Jafarzadeh, Shima; FOROUGH, MEHRDAD; Garavand, Farhad; Alizadeh, Saeid; Salehabadi, Ali; Khaneghah, Amin Mousavi; Jafari, Seid Mahdi (2022-02-01)
Background: Plant-based proteins as an alternative to synthetic polymers have attracted the interest of the global packaging industry in the last decade due to their biodegradability, sustainability, environmental, and ben...
Thieno[3,4-c]pyrrole-4,6-dione-Based Conjugated Polymers for Nonfullerene Organic Solar Cells
Yasa, Mustafa; Toppare, Levent Kamil (2022-02-01)
Donor-acceptor (D-A) conjugated polymers have gotten significant attention in the past decades. Wide application area, ease of production, and cost-effectiveness have made the D-A conjugated polymers a pivotal class of org...
Attaching azoles to Hantzsch 1,4-dihydropyridines: Synthesis, theoretical investigation of nonlinear optical properties, antimicrobial evaluation and molecular docking studies
GÜNDÜZ, MİYASE GÖZDE; Dengiz, Çağatay; KOÇAK ASLAN, EBRU; Skaro Bogojevic, Sanja; Nikodinovic-Runic, Jasmina (2022-01-05)
In the present study, we designed three novel compounds via the combination of two precious nitrogen-containing scaffolds; 1,4-dihydropyridine (DHP) and azole, in the same molecule. To synthesize the title compounds, initi...
How to increase the catalytic efficacy of platinum-based nanocatalysts for hydrogen generation from the hydrolysis of ammonia borane
Özkar, Saim (2022-01-01)
It reports how to increase the overall catalytic performance of precious platinum nanocatalysts in hydrolytic dehydrogenation of ammonia borane which requires enhancement of both catalytic activity and reusability of the n...
A facile synthesis of a novel family of heterotricyclic hybrids: Spiro-pyrrolopyridazines
Dündar, Buse Ayşen; Zora, Metin (2022-01-01)
An efficient strategy for the synthesis of spiro-pyrrolopyridazines has been developed. When reacted with hydrazine monohydrate, spiro-2H-pyrroles with a 1,4-diketone functionality produced a novel family of heterotricycli...
The control of fungi and mycotoxins by food active packaging: a review
Jafarzadeh, Shima; Hadidi, Milad; FOROUGH, MEHRDAD; Nafchi, Abdorreza Mohammadi; Khaneghah, Amin Mousavi (2022-01-01)
Conventionally used petrochemical-based plastics are poorly degradable and cause severe environmental pollution. Alternatively, biopolymers (e.g., polysaccharides, proteins, lipids, and their blends) are biodegradable and ...
The Q41R mutation in the HCV-protease enhances the reactivity towards MAVS by suppressing non-reactive pathways
Zheng, Chen; Schneider, Markus; Marıon, Antoıne; Antes, Iris (2022-01-01)
Recent experimental findings pointed out a new mutation in the HCV protease, Q41R, responsible for a significant enhancement of the enzyme's reactivity towards the mitochondrial antiviral-signaling protein (MAVS). The Q41R...
Peptide stapling by late-stage Suzuki-Miyaura cross-coupling
Gruss, Hendrik; Feiner, Rebecca C.; Mseya, Ridhiwan; Schroeder, David C.; Jewginski, Michat; Mueller, Kristian M.; Latajka, Rafat; Marıon, Antoıne; Sewald, Norbert (2022-01-01)
The development of peptide stapling techniques to stabilise alpha-helical secondary structure motifs of peptides led to the design of modulators of protein-protein interactions, which had been considered undruggable for a ...
A Dual-Surface Mechanism of Oxidant-Free Pyrrole Polymerization in the Two-Dimensional Titanium Carbide (MXene) Interlayer Nanospace
Yıldırım, Erol; Luo, He-Kuan; Jin, Hongmei; Wu, Gang; Tan, Teck Leong; Wong, Zicong Marvin; Xu, Jianwei.; Yang, Shuo-Wang (2022-01-01)
The influence of confinement in acidic nanotemplates on the polymerization reaction of pyrrole was previously reported. Similarly, an in situ oxidant-free polymerization of pyrrole on and in between the Ti3C2 MXene layers ...
Plant protein-based nanocomposite films: A review on the used nanomaterials, characteristics, and food packaging applications
Jafarzadeh, Shima; FOROUGH, MEHRDAD; Amjadi, Sajed; Javan Kouzegaran, Vahid; Almasi, Hadi; Garavand, Farhad; Zargar, Masoumeh (2022-01-01)
© 2022 Taylor & Francis Group, LLC.Consumer demands to utilize environmentally friendly packaging have led researchers to develop packaging materials from naturally derived resources. In recent years, plant protein-based f...
Light induced step-growth polymerization of Donor-Acceptor-Donor (DAD) type monomers based on thiophene – [1,2,5] Chalcogenazolo[3,4-f]-benzo [1,2,3] triazole – Thiophene
Kaya, Kerem; Aydan Alkan, Ecem; Yaşa, Mustafa; Süerkan, Ali; Udum, Yasemin; Toppare, Levent Kamil; Yağcı, Yusuf (2021-12-01)
Two new donor-acceptor-donor(DAD) polymers type near-infrared (NIR) absorbing polymers containining thiophene as the donor and [1,2,5] chalcogenazolo [ 3,4-f]-benzo [1,2,3] triazole (chalcoen=S (P1a) or Se (P1b)) derivativ...
Hydrolytic Degradation of Polylactic Acid Fibers as a Function of pH and Exposure Time
Vaid, Radhika; Yıldırım, Erol; Pasquinelli, Melissa A.; King, Martin W. (2021-12-01)
Polylactic acid (PLA) is a widely used bioresorbable polymer in medical devices owing to its biocompatibility, bioresorbability, and biodegradability. It is also considered a sustainable solution for a wide variety of othe...
Synthesis of selenophene substituted benzodithiophene and fluorinated benzothiadiazole based conjugated polymers for organic solar cell applications
Cevher, Duygu; Taşkaya Aslan, Sultan; Bolayır, Eda; Hizalan Ozsoy, Gonul; UDUM, YASEMİN; Yıldırım, Erol; Toppare, Levent Kamil; Çırpan, Ali (2021-12-01)
A series of alternating conjugated copolymers which contain selenophene modified benzodithiophene and fluorine bearing benzothiadiazole have been synthesized via Stille polycondensation reaction to investigate the effect o...
Synthesis and electropolymerization of donor-acceptor-donor type monomers based on azobenzene-substituted thieno[3,4-c]pyrrole-4,6-dione acceptors
Çakal, Deniz; Önal, Ahmet Muhtar (2021-12-01)
By using donor-acceptor-donor approach, a new series of photo responsive and electroactive trimeric monomers, namely (E)-5-(4-(phenyldiazenyl)phenyl)-1,3-di(thiophen-2-yl)-4H-thieno[3,4- c]pyrrole-4,6(5H)-dione (T-2-AB ), ...
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