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Shear-induced structural transitions in confined nematic soft interfaces Ilhan, Gulce; Carenza, Livio Nicola; Büküşoğlu, Emre (2025-12-01) Research on aqueous-interfaced liquid crystals (LCs) offered valuable outcomes leading to successful applications in sensing and actuation systems. The forward leap of the promising findings in stagnant LC systems will be ...
Biochemical production from sustainable carbon sources by Komagataella phaffii Çalık, Pınar (2025-07-01) The use of sustainable carbon sources (SCSs) for biochemical production is needed to facilitate the chemical process industries transition towards the net-zero age and greener economy. The use of SCSs such as crude glycero...
Microwave-heated carbon-coated monolithic reactor for steam reforming of ethanol Sarıyer, Merve; Doğu, Timur; Sezgi, Naime Aslı (2025-05-15) Microwave-heated carbon-coated monolithic reactor stands out instead of powder-based conventional heated systems to create more efficient, compact, and environmentally friendly process intensification methods. With this ai...
High-pressure phase behavior of the carbon dioxide-trifluoropropylisobutyl polyhedral oligomeric silsesquioxane binary system Ertaş, Alican; Dilek Hacıhabiboğlu, Çerağ (2025-05-01) The solubility of a bifunctional polyhedral oligomeric silsesquioxane, trifluoropropylisobutyl (TFIB) POSS, in supercritical carbon dioxide (scCO2) was investigated. In the temperature and pressure ranges of 308 K to 323 K...
Mathematical modeling of response dynamics of n-type SnO2-based thick film gas sensor Atman, Berkan; Karakaş, Gürkan; Uludağ, Yusuf (2025-05-01) The sensing mechanism of semiconductor metal oxide (SMOX) gas sensors has a complex nature due to the physical and chemical phenomena involved. In this study, a comprehensive transient mathematical model was developed cons...
Tuning the optical and photocatalytic properties of hexagonal boron nitride through Fe and co doping: A DFT study Bouziani, M.; Bouzıanı, Asmae; Zaari, H.; Mezzat, F.; Hausler, R. (2025-03-01) Hexagonal boron nitride (h-BN), a promising two-dimensional material, is known for its wide band gap (∼6 eV) and exceptional thermal and chemical stability. However, its wide band gap limits its photocatalytic applications...
High-yield production of lactide isomers from depolymerization of polylactic acid in supercritical carbon dioxide Sivri, Seda; Sezgi, Naime Aslı; Dilek Hacıhabiboğlu, Çerağ (2025-03-01) Chemical depolymerization of polylactic acid (PLA) was demonstrated in supercritical carbon dioxide medium. No catalyst, organic solvent or water was employed in the reaction. The primary feedstocks used in ring opening po...
Nanoparticle concentration and solvent exchange via organic solvent ultrafiltration Ozcelik, Feyza; Çulfaz Emecen, Pınar Zeynep (2025-02-19) Downstream processing of nanoparticles after synthesis frequently involves purification, concentration and solvent exchange steps. While these are typically done via centrifugation in lab scale, ultrafiltration is a practi...
Synergistic photocatalytic degradation of methylene blue and ibuprofen using Co₃O₄-Decorated hexagonal boron nitride (hBN) composites under Sun-like irradiation Bouziani, Mariam; Bouzıanı, Asmae; Hsini, Abdelghani; Bianchi, Claudia L.; Falletta, Ermelinda; Di Michele, Alessandro; Çelik, Gökhan; Hausler, Robert (2025-02-01) In this study, we report the synthesis and photocatalytic performance of Co₃O₄-decorated hexagonal boron nitride (hBN) composites for degrading methylene blue (MB) and ibuprofen (IBF) under sunlight irradiation. Using a dr...
The effect of Elliott waves and Landau damping on the stability of asset pricing - A case study with the crude oil prices Gündüz, Güngör (2025-01-01) The stability in stock markets is the theme of this work. It has been demonstrated that the random walk theory alone is insu cient to explain the dynamic behavior of asset or stock prices. Deviations from the random walk t...
Kinetic Analysis and Simulation of Dicyclopentadiene/Cyclopentadiene Production by Using Reactive Batch Distillation of Pyrolysis Gasoline Uysal, Deniz Sesli; Kalıpçılar, Halil; Karakaş, Gürkan (2025-01-01) Reactive batch distillation combines the advantages of reactive distillation with the flexibility of batch distillation. In this study, the production of cyclopentadiene by cracking dicyclopentadiene in pyrolysis gasoline ...
Open and FAIR data for nanofiltration in organic media: A unified approach Van Buggenhout, Simon; et. al. (2025-01-01) Organic solvent nanofiltration (OSN), also called solvent-resistant nanofiltration (SRNF), has emerged as a promising technology for the removal of impurities, recovery of solutes, and the regeneration of solvents in vario...
Development of stable and porous Ag2O-loaded hydroxyapatite nanocomposites for enriched photocatalytic degradation of Rhodamine B under visible light Oulguidoum, Abdeladim; Fatine, Sara; Abbadi, Meryem; Bouzıanı, Asmae; Boujamlaoui, Zakaria; Nunzi, Jean-Michel; Laghzizil, Abdelaziz (2025-01-01) A simple and inexpensive process from natural phosphate in the presence of Ag+ ions was used to develop Ag2O-loaded hydroxyapatite nanocomposites. The structural and textural characterization of the nanocomposites suggests...
Tracking the Mode of Carbon Deposition During Dry Reforming of Methane over Ni/γ-Al2O3 Ay, Hale; Mao, Haiyan; Xu, Jun; Reimer, Jefferey A.; Üner, Deniz (2025-01-01) Dry reforming of methane was studied over Ni/Al2O3 catalyst at 600 °C with varying CO2/CH4 ratios (0.2, 0.5, 1, 2, 5). 13CO2 as well as 12CO2 were used along with 12CH4 and resulting carbon was characterized with 13C solid...
Optically responsive dry cholesteric liquid crystal marbles Kocaman, Ceren; Batır, Özge; Büküşoğlu, Emre (2024-10-01) Dry liquid crystal marbles are structures that consist of cholesteric liquid crystal (CLC) droplets prepared by the mixture of chiral-doped thermotropic LCs encapsulated by cellulose nanocrystals (CNCs) that have been drie...
Chemical upcycling of polyolefins into liquid refinery feedstock from the circularity and chemical engineering aspects Aydogdu, Arzum Ceren; Erkmen, Berrak; Suerkan, Ali; Ezdesir, Ayhan; Guliyev, Bilal; Çelik, Gökhan (2024-10-01) Three quarters of all plastics produced each year are discarded to landfill after a single use without proper waste management practices, causing a global environmental crisis: waste plastics suffocating our world at enorm...
Cross-Linked Cellulose Nanocrystal Membranes with Cholesteric Assembly İçten, Berk Can; Büküşoğlu, Emre; Çulfaz Emecen, Pınar Zeynep (2024-06-25) Forming membranes by tangential flow deposition of cellulose nanocrystal (CNC) suspensions is an attractive new approach to bottom-up membrane fabrication, providing control of separation performance using shear rate and i...
Assessment of mechanical properties and morphology of polylactic acid/acrylonitrile butadiene styrene blends and their carbon fabric-reinforced composites Ozturk, Irem; Bayram, Göknur (2024-06-01) This study focuses on the development of carbon fabric-reinforced polymer composites which were prepared using polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) blends (10, 30, and 50 wt%) with different comp...
Effect of Pt nanoparticle size on resistance to chloride-induced inhibition for hydrodechlorination of trichloroethylene in water Karahan, Selin; Çelik, Gökhan (2024-04-01) Catalysts used for hydrodechlorination (HDC) of trichloroethylene (TCE) undergo partial or complete loss of catalytic activity due to inhibition by inevitable reaction product HCl. Changing the size of Pt NPs could be used...
Analysis of core velocity in the presence of solids using UDV and improved model for cloud height in stirred tanks Fırat Taşkın, Ahmet; Uludağ, Yusuf; Ayrancı Tansık, İnci (2024-03-05) Formation of cloud height is undesired due to limited mixing between clear liquid and solids rich volume; therefore, an accurate prediction of the cloud height is crucial. In this work, ultrasound Doppler velocimetry was e...

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