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Publication year : 2022 ✕Databases : MDPI ✕
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Eco-Friendly Synthesis of Silver Nanoparticles Using Pulsed Plasma in Liquid: Effect of Surfactants

Emil ÖMÜRZAK

Silver (Ag) nanoparticles were successfully prepared by using the in-liquid pulsed plasma technique. This method is based on a low voltage, pulsed spark discharge in a dielectric liquid. We explore the effect of the protecting ligands, specifically Cetyl Trimethylammonium Bromide (CTAB), Polyvinylpyrrolidone (PVP), and Sodium n-Dodecyl Sulphate (SDS), used as surfactant materials to prevent nanoparticle aggregation. The X-Ray Diffraction (XRD) patterns of the samples confirm the face-centered cubic crystalline structure of Ag nanoparticles with the presence of Ag2O skin. Scanning Transmission ...More

Article 2022 Mühendislik Fakültesi Surfaces5 ( 1 ) 77 Views
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General Nutritional Profile of Bee Products and Their Potential Antiviral Properties against Mammalian Viruses

Fatih Ramazan İSTANBULLUGİL

Bee products have been extensively employed in traditional therapeutic practices to treat several diseases and microbial infections. Numerous bioactive components of bee products have exhibited several antibacterial, antifungal, antiviral, anticancer, antiprotozoal, hepatoprotective, and immunomodulatory properties. Apitherapy is a form of alternative medicine that uses the bioactive properties of bee products to prevent and/or treat different diseases. This review aims to provide an elaborated vision of the antiviral activities of bee products with recent advances in research. Since ancient t ...More

Review 2022 Veteriner Fakültesi Nutrients14 ( 17 ) 30 Views
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Molecular Characterization of Native Entomopathogenic Fungi from Ambrosia Beetles in Hazelnut Orchards of Turkey and Evaluation of Their In Vitro Efficacy

İsmail ERPER

Simple Summary Turkey is the world's largest producer and exporter of hazelnut. Ambrosia beetle species are the most common species of pests for hazelnut in the orchards of Turkey. These beetles cause enormous economic losses by draining hazelnut branches and trees. The techniques for managing ambrosia beetles are limited. The more effective and eco-friendly alternative control methods, including the use of entomopathogenic fungi (EPF), should be included in integrated pest management programs to suppress ambrosia beetle populations. The objectives of the current study were (i) to isolate EPF ...More

Article 2022 Ziraat Fakültesi Insects9 ( 13 ) 61 Views
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Natural Strategies as Potential Weapons against Bacterial Biofilms

Fatih Ramazan İSTANBULLUGİL

Microbial biofilm is an aggregation of microbial species that are either attached to surfaces or organized into an extracellular matrix. Microbes in the form of biofilms are highly resistant to several antimicrobials compared to planktonic microbial cells. Their resistance developing ability is one of the major root causes of antibiotic resistance in health sectors. Therefore, effective antibiofilm compounds are required to treat biofilm-associated health issues. The awareness of biofilm properties, formation, and resistance mechanisms facilitate researchers to design and develop combating str ...More

Review 2022 Veteriner Fakültesi Life-Basel12 ( 10 ) 65 Views
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The Usefulness of Serum Brain Damage Biomarkers in Detection and Evaluation of Hypoxic Ischemic Encephalopathy in Calves with Perinatal Asphyxia

Fatih HATİPOĞLU

Simple Summary The objective of the present study was to determine hypoxic brain damage in calves with perinatal asphyxia using brain-specific damage biomarkers. Ten healthy calves and 25 calves with perinatal asphyxia were enrolled in the study. Consciousness evaluation and laboratory analyses were performed at admission, 24, 48, and 72 h. Serum concentrations of brain-related biomarkers were measured to assess brain injury. Moreover, histopathological and immunohistochemical examinations of the brain tissue were performed in 13 nonsurvivor calves. The consciousness level of the calves with a ...More

Article 2022 Veteriner Fakültesi Animals12 ( 22 ) 65 Views
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Multi-Directional Cloak Design by All-Dielectric Unit-Cell Optimized Structure

Mirbek TURDUEV

In this manuscript, we demonstrate the design and experimental proof of an optical cloaking structure that multi-directionally conceals a perfectly electric conductor (PEC) object from an incident plane wave. The dielectric modulation around the highly reflective scattering PEC object is determined by an optimization process for multi-directional cloaking purposes. Additionally, to obtain the multi-directional effect of the cloaking structure, an optimized slice is mirror symmetrized through a radial perimeter. The three-dimensional (3D) finite-difference time-domain method is integrated with ...More

Article 2022 Mühendislik Fakültesi Nanomaterials12 ( 23 ) 36 Views
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Natural Products/Bioactive Compounds as a Source of Anticancer Drugs

Fatih Ramazan İSTANBULLUGİL

Simple Summary Cancer is considered as a large group of diseases involving abnormal cell growth, which results in an alarming rise in the mortality rate at the worldwide level. Presently, the main point of interest in pharmaceutical research is the development of the novel and efficient anticancer drugs based on natural sources. In this regard, plants, and some microbial species, due to their composition, ecology, phytochemical, and ethnopharmacological properties, play a significant role. Accordingly, a series of plant-derived bioactive compounds are in the clinical development phase against ...More

Review 2022 Veteriner Fakültesi Cansers24 ( 24 ) 28 Views
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A General Math Anxiety Measure

Gülzada STANALİYEVA | Bakıtbek ORUNBEKOV

Math anxiety is a psychological burden that can hinder individuals across their lifetimes. However, the current literature lacks a valid measure of math anxiety that can be used across instructional modalities and among non-student populations. As such, it is difficult to assess math anxiety in virtual learning environments, track math anxiety across lifetimes, or determine the utility of math anxiety inoculations for non-student populations. This study presents a validity portfolio for a generalized math anxiety measure that can be used across teaching modalities, across lifetimes, and is sim ...More

Article 2022 İletişim Fakültesi Education Sciences12 ( 6 ) 120 Views
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