Karabıyık, Merve
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Özpirin, Merve
Karabiyik, Merve
Ozpirin, Merve
Karabiyik, Merve
Ozpirin, Merve
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merveozpirin@iyte.edu.tr
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03.02. Department of Chemical Engineering
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Current Staff
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1NO POVERTY
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
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7AFFORDABLE AND CLEAN ENERGY
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8DECENT WORK AND ECONOMIC GROWTH
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
3
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10REDUCED INEQUALITIES
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
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4
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17
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3
Documents
3
Citations
16
Scholarly Output
8
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5
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3080/1686
Supervised MSc Theses
1
Supervised PhD Theses
1
WoS Citation Count
26
Scopus Citation Count
29
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0
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0
WoS Citations per Publication
3.25
Scopus Citations per Publication
3.63
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2
Supervised Theses
2
| Journal | Count |
|---|---|
| Chemical Engineering Science | 1 |
| Journal of Materials Chemistry C | 1 |
| Journal of Materials Science | 1 |
| Physics and Mechanics of New Materials: Synthesis, Processing, and Emerging Applications | 1 |
| Polymers | 1 |
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8 results
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Now showing 1 - 8 of 8
Article Citation - WoS: 9Citation - Scopus: 10Cvd Deposited Epoxy Copolymers as Protective Coatings for Optical Surfaces(MDPI, 2023) Karabıyık, Merve; Cihanoğlu, Gizem; Ebil, ÖzgençCopolymer thin films of glycidyl methacrylate (GMA), ethylene glycol dimethacrylate (EGDMA) and 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane (V4D4) were synthesized via initiated chemical vapor deposition (iCVD) as protective coatings for optical surfaces. Chemical durability in various solvents, corrosion resistance, adhesion to substrate, thermal resistance and optical transmittance of the films were evaluated. Crosslinked thin films exhibited high chemical resistance to strong organic solvents and excellent adhesion to substrates. Poly(GMA-co-EGDMA) and poly(GMA-co-V4D4) copolymers demonstrated protection against water (<1% thickness loss), high salt resistance (<1.5% thickness loss), and high optical transparency (~90% in visible spectrum) making them ideal coating materials for optical surfaces. Combining increased mechanical properties of GMA and chemical durability V4D4, the iCVD process provides a fast and low-cost alternative for the fabrication of protective coatings.Article Citation - WoS: 10Citation - Scopus: 12Transparent block copolymer thin films for protection of optical elements via chemical vapor deposition(Elsevier Ltd, 2018) Karabıyık, Merve; Ebil, ÖzgençIn this study, glycidyl methacrylate and 1H, 1H, 2H, 2H-perfluorodecyl acrylate copolymer p(GMA-co-PFDA) thin-films fabricated via Initiated Chemical Vapor Deposition (iCVD) were investigated as protective coatings on optical BK7 glass substrates and commercial optical filters. Durability tests based on military standards MIL-F-48616 and MIL-C-48497A were performed to evaluate performance of coatings for the protection of surfaces of optical elements. Cross-linked p(GMA-co-PFDA) copolymer coatings successfully passed all durability tests showing excellent mechanical properties and protection against humidity, salt water, swelling in water, and resistance to organic solvents while providing excellent adhesion to substrate. iCVD process enabled fine tuning of film morphology, mechanical properties and hydrophobicity by controlling the process parameters. Fabricated films were hydrophobic and highly transparent (>98%) in the wavelength range from 300 nm to 1000 nm. Optical transmittance measurements before and after coating process proved that while providing chemical and physical protection, p(GMA-co-PFDA) copolymer thin-films do not cause any detectable change in optical performance of commercial narrow band and wide band filters.Master Thesis Development of protective nano-coatings for electro-optical systems(01. Izmir Institute of Technology, 2016) Karabıyık, Merve; Ebil, ÖzgençElectro-optical (EO) systems have wide range of applications and in recent years, especially the use of EO imaging systems in military and civil aviation applications have substantially increased. In these applications, EO systems are exposed to quite harsh and unstable operating conditions like sudden changes in temperature and humidity, dust, fog, physical shock, vibration and radiation. If their optical surfaces such as prisms, lenses and mirrors are damaged due to these conditions, their repair usually is not possible. To overcome these problems, it is necessary to develop special protective coating layers for optical surfaces. The main goal of this study is to produce protective, self-cleaning and super-hydrophobic polymeric thin films for optical surfaces of the electro-optical (EO) systems. Initiated chemical vapor deposition (iCVD) is a novel method for the fabrication of thin film coatings and it has many advantages such as low production cost, very low deposition temperature, 3D geometry coating performance and high deposition rate. Therefore, iCVD was employed to fabricate homopolymers of poly (glycidyl methacrylate) (PGMA) and poly (1H, 1H, 2H, 2H-Perfluorodecyl acrylate) (PPFDA) and P(GMA-PFDA) copolymer thin-films as protective coatings for EO systems. Optical modeling and simulations were performed to determine the effect of film thickness and refractive index on optical performance of substrates to be coated. Optical performance of fabricated coatings was also measured between 400 and 1000 nm range to confirm that protective coatings do not have any measureable impact on optical performance provided that the protective film thickness is kept between 50 nm to 1 μm. The surface morphology of the protective coatings was evaluated using a variety of analytical tools such as Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and Contact Angle measurements. Optical tests were performed by following MIL-F-48616 Military Standard (MIL-STD). The best protective coatings were obtained by using P(GMA-PFDA) copolymer which yields good mechanical properties due to epoxy pendant group and super hydrophobicity due to incorporation of fluoro monomer.Doctoral Thesis Chemical Vapor Deposited Reusable Fluorescent Thin Film Sensor Nanoprobes for the Detection of Heavy Metal Ions(01. Izmir Institute of Technology, 2023) Karabıyık, Merve; Ebil, ÖzgençHeavy metal pollution has made a serious threat to the environment and human health day by day due to developing science, technology and industrial activities, therefore, the importance of selective detection of heavy metals has increased. Heavy metals gradually accumulate in the human body, especially via water sources. Among heavy metals, cadmium is one of the most carcinogenic ones and has harmful effects even in trace amounts. Despite it, detection studies of cadmium ion are very few. This thesis study focuses on the development of Initiated Chemical Vapor Deposition (iCVD) synthesized polymer thin film based quantum dot-nitroxide radical fluorescence sensor nanoprobe, which has a multi-use property and high durability, unlike sensor probes developed for single use in liquid media, and selective detection of Cd2+ ions in real water sources. By examining the effects of pH, concentration, solvent type and reaction time, the most suitable conditions to improve the interaction between Cd2+ ion and the newly developed sensor nanoprobe were investigated. The results proved that it is possible to detect the target ion easily even in complex environments where other heavy metal ions are present. Cd2+ ion detection limit with this proposed nanoprobe was found as 0.195 μM and high recovery percentage (>90%) obtained in standard addition method. In the multi-use study, it was confirmed that nanoprobe could be used repeatedly for the selective and sensitive detection of Cd2+ ion without being influenced by the content of daily water samples. This thesis is a great guide for new fluorescent sensor applications.Article Robust CVD Polymer Encapsulation for Thermally and Chemically Resistant Fluorescent Sensor Nanoprobes(Elsevier Ltd, 2026) Karabıyık, M.; Cihanoğlu, G.; Ebil, Ö.Semiconductor quantum dots (QDs) are attractive fluorophores for sensor applications due to their narrow emission bandwidths and high photostability; however, their performance is often limited by insufficient chemical and thermal durability under operating conditions. In this study, a solvent-free encapsulation strategy based on initiated chemical vapor deposition (iCVD) is proposed to enhance the stability of QD-based sensor nanoprobes. Cross-linked poly (glycidyl methacrylate-co-ethylene glycol dimethacrylate) (ECOP) thin films were conformally deposited as encapsulation layers onto CdTe QD-functionalized poly(GMA) sensor surfaces. The encapsulated nanoprobes were evaluated under chemically aggressive environments (water, salt water, toluene, and sulfuric acid) and elevated temperatures. Following exposure to aggressive solvents, both the polymer film thickness variation and QD fluorescence intensity change remained below 10 %, confirming the robustness of the cross-linked network. Also, thermal durability tests showed stable fluorescence performance after annealing at 250 °C, with structural and optical changes remaining within the accepted 10 % threshold. The results demonstrate that coatings deposited using iCVD exhibit conformal coverage and enhanced stability. This enables reliable protection of QD-based sensor nanoprobes without compromising optical performance. This study presents a promising method to extend the operational lifetime and environmental durability of QD-integrated sensor platforms by using chemically and thermally stable polymer encapsulation. © 2026 Elsevier LtdArticle Citation - WoS: 3Citation - Scopus: 3Reusable polymer-based fluorescent sensor nanoprobe for selective detection of cd<sup>2+</sup> ions in real water sources(Royal Society of Chemistry, 2024) Karabıyık, Merve; Ebil, ÖzgençCadmium, which is classified as a highly toxic metal among all heavy metals, poses a threat to the environment and human health, even at trace levels. In this study, for the first time in the literature, a fluorescent sensor nanoprobe that can selectively detect Cd2+ ions in different real water sources has been developed by attaching a CdTe QD-4 amino TEMPO complex to an iCVD deposited cross-linked copolymer surface with high mechanical strength. Under the appropriate conditions such as pH, concentration, type of solvent and reaction time, the interaction between Cd2+ ions and the polymer-based QD-4AT nanoprobe was enhanced, and the detection of this target ion with high selectivity was made possible even in the environments with complex structures containing different heavy metal ions. The limit of detection (LOD) of Cd2+ ions with this proposed polymer sensor nanoprobe was found to be 0.195 mu M by using the linear detection region of 0.0784-2.5 mu M (R-2 > 0.997). In the literature, several sensor probes have been developed for the detection of Cd2+ ions and have only been investigated for single use in liquid media. The polymer sensor nanoprobe developed in this study has high sensitivity and selectivity in terms of detection limit compared to the previous ones, and the results obtained from the multiple use studies indicate that this nanoprobe can be used more than once for ion detection without loss of performance. This is a brand-new product for fluorescence sensing studies and will be a great source of inspiration for them.Book Part Investigating the Adhesion Problem of a Double-Sided Tape and Car Bumper Packing Materials(Apple Academic Press, 2024) Balköse, D.; Cihanoğlu, G.; Kirköse, S.; Karabiyik, M.; Olcay, A.N.Pressure-sensitive adhesives (PSAs) are viscoelastic materials with permanent stickiness, and can adhere strongly to solid surfaces upon application of slight contact pressure under a relatively short contact time. The adhesion problem of double-sided adhesive to packing films of car bumpers was investigated by analyzing the flexible adhesive layer and two alternative packing films. The films were blue in color and one of them was opaque and the other one was transparent. Scanning electron microscopy (SEM), Fourier transfer infrared (FTIR) spectroscopy were used to characterize the samples. Water contact angle and roughness of surfaces were also determined. It was shown that the film with high surface roughness and high water contact angle adhered better to the flexible adhesive layer. © 2025 by Apple Academic Press, Inc.Article Citation - WoS: 4Citation - Scopus: 4Polymer-Bonded Cdte Quantum Dot-Nitroxide Radical Nanoprobes for Fluorescent Sensors(Springer, 2022) Karabıyık, Merve; Ebil, ÖzgençA novel functional polymer-bonded quantum dots (QDs)-nitroxide radical complex was demonstrated. In the first part of the study, the synthesis of polymer thin films via initiated chemical vapor deposition (iCVD), functionalization of polymer thin films with amine functional groups, and attachment of QDs to polymer surface were demonstrated. Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy together with fluorescence spectroscopy studies revealed that aliphatic primary amine (propylamine) was very effective for the functionalization of iCVD deposited poly(glycidyl methacrylate) (pGMA) and its copolymer with diethylaminoethyl methacrylate (p(GMA-co-DEAEMA)) and also QD attachment to functionalized polymer surface. In the second part of the study, the synthesis and attachment of Quantum Dot-4Amino TEMPO (QD-4AT) nanoprobes to functionalized pGMA thin films and feasibility of using them as fluorescent sensor structures were investigated. It was found that high initial 4AT concentration and long (24 h) interaction times are beneficial for nanoprobe synthesis. Electron paramagnetic resonance (EPR) spectroscopy analysis revealed the existence of covalent bond between QD and 4AT when 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide was used during synthesis. EPR analysis together with fluorescence microscopy investigation confirmed the successful attachment of nanoprobes to polymer surface. Time-depended fluorescence quenching analysis revealed that more than 50% reduction in fluorescence intensity within 15 min demonstrating the potential of polymer bonded QD-4AT nanoprobes in various sensor applications.