Browsing by Author "Şahin, Samet"
Now showing items 1-15 of 15
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Characterization and catalytic performance evaluation of a novel heterogeneous mesoporous catalyst for methanol-acetic acid esterification
Şimşek, Veli; Şahin, Samet (Springer, 2019)In this study, a novel heterogeneous catalyst based on silicotungstic acid (STA) has been synthesised using hydrothermal and wet-impregnation methods for methanol-acetic acid esterification. Active compound STA was loaded ... -
Detection strategies of Zearalenone for food safety: A review
Çağlayan, Mustafa Oğuzhan; Şahin, Samet; Üstündağ, Zafer (Taylor & Francis, 2020)Zearalenone (ZEN) is a toxic compound produced by the metabolism of fungi (genus Fusarium) that threaten the food and agricultural industry belonging to the in foods and feeds. ZEN has toxic effects on human and animal ... -
Electrochemical Characterization of Carbonized Typha Tassel Modified ScreenPrinted Electrode and Its Enzymatic Glucose Oxidation Application
Şahin, Samet (Hacettepe Üniversitesi, 2019)Converting biomass into cheaper but valuable products is very important for a more sustainable world. Especially with emerging technology, the use of hazardous materials in the synthesis of substances such as carbonaceous ... -
Electrochemical Detection of Plasma Immunoglobulin as a Biomarker for Alzheimer's Disease
Garyfallou, Goulielmos-Zois; Ketebu, Orlando; Şahin, Samet; Mukaetova-Ladinska, Elizabeta B.; Catt, Michael; Yu, Eileen Hao (MDPI, 2017)The clinical diagnosis and treatment of Alzheimer's disease (AD) represent a challenge to clinicians due to the variability of clinical symptomatology as well as the unavailability of reliable diagnostic tests. In this ... -
Electrochemical impedimetric detection of kanamycin using molecular imprinting for food safety
Işık, Deniz; Şahin, Samet; Çağlayan, Mustafa Oğuzhan; Üstündağ, Zafer (Elsevier, 2021)In this work, molecularly imprinted kanamycin (KAN) electrodes were prepared using electrochemical polymerization of pyrrole (Py). First, a glassy carbon electrode was coated with an optimized volume of graphene oxide ... -
An electrochemical label-free DNA impedimetric sensor with AuNP-modified glass fiber/carbonaceous electrode for the detection of HIV-1 DNA
Yeter, Ece Ç.; Şahin, Samet; Çağlayan, Mustafa Oğuzhan; Üstündağ, Zafer (Springer, 2020)In this study, a highly sensitive, electrochemical, and label-free DNA impedimetric sensor was developed using carbonized glass fiber-coal tar pitch (GF-CTP) electrodes supported with gold nanoparticles (AuNPs) for the ... -
Enzymatic fuel cells with an oxygen resistant variant of pyranose-2-oxidase as anode biocatalyst
Şahin, Samet; Wongnate, Thanyaporn; Chuaboon, Litavadee; Chaiyen, Pimchai; Yu, Eileen Hao (Elsevier, 2018)In enzymatic fuel cells (EnFCs), hydrogen peroxide formation is one of the main problems when enzymes, such as, glucose oxidase (GOx) is used due to the conversion of oxygen to hydrogen peroxide in the catalytic reaction. ... -
An Overview of Modern Thermo-Conductive Materials for Heat Extraction in Electrical Machines
Şahin, Samet; Baker, Nick; Kulan, Mehmet C. (IEEE, 2020)This article presents a comprehensive review of the modern thermo-conductive materials that have potential to improve the heat extraction in electrical machines by conduction. Currently, there is a significant interest ... -
Recent advances in aptamer-based sensors for breast cancer diagnosis: special cases for nanomaterial-based VEGF, HER2, and MUC1 aptasensors
Şahin, Samet; Çağlayan, Mustafa Oğuzhan; Üstündağ, Zafer (Springer Link, 2020)Cancer is one of the most common and important diseases with a high mortality rate. Breast cancer is among the three most common types of cancer in women, and the mortality rate has reached 0.024% in some countries. For ... -
A review on nanostructure-based mercury (II) detection and monitoring focusing on aptamer and oligonucleotide biosensors
Şahin, Samet; Çağlayan, Mustafa Oğuzhan; Üstündağ, Zafer (Elsevier, 2020)Heavy metal ion pollution is a severe problem in environmental protection and especially in human health due to their bioaccumulation in organisms. Mercury (II) (Hg2+), even at low concentrations, can lead to DNA damage ... -
Sensor and Bioimaging Studies Based on Carbon Quantum Dots: The Green Chemistry Approach
Çağlayan, Mustafa Oğuzhan; Mindivan, Ferda; Şahin, Samet (Taylor & Francis, 2020)Since carbon quantum dots have high photoluminescent efficiency, it has been a desired material in sensor and bioimaging applications. In recent years, the green chemistry approach has been preferred and the production of ... -
Silika Kaynaklı Mezo-gözenekli Malzemelerin Enzimatik Elektrokimyasal Sistemlerde Kullanımının İncelenmesi
Şimşek, Veli; Şahin, Samet; Şimşek, Veli; Şahin, Samet (Bilecik Şeyh Edebali Üniversitesi, Bilimsel Araştırma Projeleri Koordinatörlüğü, 2021)Gerçekleştirilen bu projenin temel amacı; silika kaynaklı mezo-gözenekli destek malzemelerin, enzim tutuklanması için uygunluğunun incelenmesi ve elektrokimyasal biyoelektronik sistemlerdeki performansının incelenmesidir. ... -
A simple and sensitive hydrogen peroxide detection with horseradish peroxidase immobilized on pyrene modified acid‐treated single‐walled carbon nanotubes
Şahin, Samet (Wiley, 2019)BACKGROUND Hydrogen peroxide (H2O2) plays an essential role in different reactions and mechanisms. Therefore, simple and sensitive detection of H2O2 becomes very important for both medical and environmental applications. ... -
Simultaneous Electrochemical Detection of Glucose and Non-Esterified Fatty Acids (NEFAs) for Diabetes Management
Şahin, Samet; Merotra, James; Kang, Jing; Trenell, Michael; Catt, Michael; Yu, Eileen Hao (IEEE, 2018)In this paper, the feasibility of simultaneous electrochemical detection of glucose and non-esterified fatty acids (NEFA) is investigated using enzyme-based biosensors. The detection of glucose is based on ferroceneNafion-glucose ... -
Tailoring properties of reduced graphene oxide by oxygen plasma treatment
Kondratowicz, Izabela; Nadolska, Malgorzata; Şahin, Samet; Lapinski, Marcin; Przesniak-Welenc, Marta; Sawczak, Miroslaw; Yu, Eileen H.; Sadowski, Wojciech; Zelechowska, Kamila (Elsevier, 2018)We report an easily controllable, eco-friendly method for tailoring the properties of reduced graphene oxide (rGO) by means of oxygen plasma. The effect of oxygen plasma treatment time (1, 5 and 10 min) on the surface ...
