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A-Site Engineered High Entropy Perovskite Oxides for Rechargeable Zinc-Air Batteries Ozgur, Cagla; Erdil, Tuncay; Geyikci, Uygar; Cihan, Huseyin Inan; Yıldız, İlker; Toparlı, Çiğdem (2026-06-01) High-entropy perovskite oxides (HEPOs) combine the compositional flexibility of perovskite oxides with the structural stability of high-entropy oxides, which enables tunable physicochemical properties and robust electronic...
Continuous and reversible electrical-tuning of fluorescent decay rate via Fano resonance Polat, Emre Ozan; Artvin, Zafer; Şaki, Yusuf; Bek, Alpan; Sahin, Ramazan (2026-04-01) We demonstrate electrically tunable control of the radiative and nonradiative decay rates of a fluorescent molecule through a Fano-resonant transparency embedded in the plasmonic local density of optical states (LDOSs). An...
Electrical Properties of ZnO Nanoparticle-Embedded/Polyethylenimine-Functionalized Nitrogen-Doped Graphene Quantum Dot Nanocomposites Yıldız, İlker (2026-03-10) In this work, a sustainable solution-based route was employed to synthesize a ZnONPs/PEI N-GQDs nanocomposite by integrating zinc oxide nanoparticles into polyethylenimine-functionalized nitrogen-doped graphene quantum dot...
Iron impurities drive Zn-rich phase formation in CdZnTe crystals Yıldız, İlker (2025-09-01)
Mineralogy and petrology of the late cretaceous rinkite-bearing Başören nepheline-sodalite syenite, Central Türkiye ERSOY, EMRAH YALÇIN; Chakrabarty, Aniket; Müller, Dirk; UYSAL, İBRAHİM; CANDAN, OSMAN; Köksal, Serhat; Yıldırım, Ayca (2025-09-01) Late Cretaceous nepheline-sodalite syenites from the Başören area in central-eastern Türkiye include complex Na-K-Ca-Fe-bearing silicates such as rinkite-(Ce) and represents the first occurrence of agpaitic rocks among the...
Calcination effects on meta-forms of kaolin and halloysite: Role of Al-Si spinel crystallization in zeolite synthesis Paşabeyoğlu, Pelin; Akata Kurç, Burcu (2025-06-01) The role of Al-Si spinel crystallization during high-temperature calcination of kaolin and halloysite was investigated to optimize the direct synthesis of zeolites 4A and 13X without additional silica or structure-directin...
Antibacterial and Cell-Adhesive Poly(2-ethyl-2-oxazoline) Hydrogels Developed for Wound Treatment: <i>In Vitro</i> Evaluation Buyuksungur, Senem; Endoğan Tanır, Tuğba; Hasirci, Vasif; Hasırcı, Nesrin (2025-04-29) Poly(2-alkyl-2-oxazoline) (PAOx) polymers are promising materials due to their tunable properties. In this study, poly(2-ethyl-2-oxazoline) (PEtOx) was methacrylated after partial hydrolysis to produce methacrylated poly(2...
Middle-to-Late Eocene shoshonitic basaltic volcanism in NW Iran (Kivi region): implications for a buried Neo-Tethyan suture Mohamadi chaghamarani, Zeinab; Amel, Nasir; Topuz, Gültekin; Moayyed, Mohsen; Koroneos, Antonios; Köksal, Serhat; Küçük, Aynur (2025-01-01) In Iran, Eocene igneous rocks form two main magmatic belts: the Azerbaijan-Alborz and Urumieh-Dokhtar. This paper examines the petrogenesis of Middle–Late Eocene andesitic to basaltic rocks and dykes (microgabbro, dolerite...
Biyomürekkepler Endoğan Tanır, Tuğba (2024-12-01) Biyomürekkepler; biyomalzeme ve canlı hücrelerle birlikte bazı durumlarda büyüme faktörleri veya biyomoleküller de içeren formülasyonlardır. Biyomürekkepler biyobaskı tekniği ile katman katman basılarak insan doku veya org...
Solar-driven calcination of clays for sustainable zeolite production: CO2 capture performance at ambient conditions Paşabeyoğlu, Pelin; Deniz, Erdem; Moumin, Gkiokchan; Say, Zafer; Akata, Burcu (2024-10-01) This study presents the environmentally sustainable synthesis of zeolites from solar-calcined kaolin and halloysite, emphasizing their application in CO2 capture due to their distinctive porous structures and chemica...
Variations of chemical, physical, mechanical properties, and biological and antimicrobial effectiveness of Ti alloys by coating with CaP doped with different amounts of Zn via micro-arc oxidation (MAO) technique BÜYÜKSUNGUR, SENEM; Parau, Anca Constantina; Dinu, Mihaela; Pana, Iulian; Vitelaru, Catalin; Schmidt, Jürgen; Endoğan Tanır, Tuğba; Hasırcı, Vasıf Nejat; Vladescu (Dragomir), Alina; Hasırcı, Nesrin (2024-10-01) Titanium alloys are preferred metals as implant materials due to their advantageous combination of low density and high biocompatibility. However, the augmentation of implant surfaces with calcium-based coatings becomes es...
Influence of pyrite on oxidative treatment of diclofenac with zero-valent iron/H2O2 system coupled with chemical precipitation under controlled and uncontrolled pH conditions Oral, Ozlem; KANTAR, ÇETİN; Yıldız, İlker (2024-01-20) Batch experiments, combined with surface measurements, were conducted to elucidate the impact of pyrite on diclofenac treatment by zero-valent iron (ZVI)/H2O2 system. In binary systems with ZVI/H2O2, diclofenac removal was...
Effect of pyrite on the treatment of chlorophenolic compounds with zero-valent iron-Fenton process under uncontrolled pH conditions: reaction mechanism and biodegradability Oral, Ozlem; KANTAR, ÇETİN; Yıldız, İlker (2024-01-01) This current study explored the effect of pyrite on the treatment of chlorophenolic compounds (CP) by Fenton process with micron-sized zero-valent iron (ZVI) as the catalyst. The experiments were conducted in batch reactor...
Methylene blue treatment with zero-valent iron/pyrite/H2O2 system under static and continuous flow conditions: Reaction mechanism and toxicity evaluation Oral, Ozlem; Arslan, Şevki; Mercan Dogan, Nazime; Yıldız, İlker; KANTAR, ÇETİN; Hafis Abdelsalam, Amine; Kuzucu, Volkan (2024-01-01) Laboratory batch and continuous flow studies, coupled with surface and toxicity analysis, were performed to evaluate methylene blue treatment by heterogeneous Fenton process using zero-valent iron (ZVI) and pyrite as co-ca...
Synthesis and characterization of b-site controlled la-based high entropy perovskite oxides Yıldız, İlker (2023-12-01) High entropy perovskite oxide materials are a highly promising class of materials with a wide range of potential applications. They offer a unique combination of perovskite oxides and high entropy oxides, making them suita...
Thermoluminescence and optically stimulated luminescence properties of NaMgF3:Dy,Eu synthesized by hydrothermal method and DFT calculations for the bandgap Guckan, V.; Bokhari, S.W.; Altunal, Volkan; Varan, Nazlı Ece; Kurt, K.; Yıldız, İlker; Gao, W.; Yegingil, Z. (2023-11-01) This study indicates Thermoluminescence (TL) and Optically Stimulated Luminescence (OSL) radiation dosimetry characteristics for NaMgF3:Dy1%,Eu0.1% fluoroperovskite. Nanocrystalline NaMgF3:Dy1%,Eu0.1% material was synthesi...
A Standard Method Verification for Determination of Sugar Content of Commercial Fruit Juices by HPLC Doğan, Tuğba; Şeker, Tamay (2023-07-01) This study aimed to verify the standard test method TS EN 12630 and determine the sugar contents of commercially available fruit juices by high pressure liquid chromatography. A laboratory should verify the standard test m...
The Effects of “Transition to Professional Life’’ Course on Career Decision-Making Self-Efficacy Ünder, Ümran ; Çavuş, Mustafa ; Akyıldız Munusturlar, Müge ; Akdoğan, Emre ; Görkem, Sultan Funda ; Tuna Öztürk, Eda; Balkan, Sevgin Aysu ; Banar, Müfide (2023-06-01) Üniversite son sınıf öğrencilerinin kariyer gelişimleri için gerekli yetkinliklerin kazandırılması ve var olan yetkinliklerinin geliştirilmesi amacıyla tasarlanan ESTÜ401 Profesyonel Hayata Geçiş (1+1; 2 ECTS) dersinin, öğ...
Unveiling the effect of Hf-(Mo,W) addition on the coarsening, agglomeration, and dissolution behaviour of γ'-Ni3Al precipitates in model Ni-based superalloys Eriş, Rasim; Akdeniz, Mahmut Vedat; Mehrabov, Amdulla (2023-03-05) In compositional design of Ni-based superalloys, atomic size of alloying elements appears as the primary factor affecting alloy strengthening. Depending on atomic size, the phase partitioning preferences of alloying elemen...
Coffee-Derived Exosome-Like Nanoparticles: Are They the Secret Heroes? Kantarcıoğlu, Murat; Yıldırım, Gülşen; Akpınar Oktar, Pınar; Yanbakan, Serpil; Özer, Zeynep Büşra; Yurtsever Sarıca, Deniz; Taşdelen, Serpil; Bayrak, Emel; Akın Balı, Dilara Fatma; Öztürk, Seçkin; Akçalı, Kamil Can; Ezer, Üstün; Kürekçi, Ahmet Emin (2023-02-01) BACKGROUND: Regular coffee consumption has beneficial and preventative effects on liver and chronic neurodegenerative diseases. However, the studies performed with the ingredients found in coffee beverages have not clarifi...

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