Yazar "Ceylan, Özgür" için listeleme
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Anti-Quorum Sensing and Antioxidant Activity of Essential Oils Extracted From Juniperus Species, Growing Spontaneously in Tebessa Region (East of Algeria)
Boudiba, Sameh; Tamfu, Alfred Ngenge; Berka, Baya; Ceylan, Özgür (SAGE Publications Inc., 2021)The chemical composition of essential oils (EOs) extracted from the aerial parts of 2 species of Juniperus was determined by Gas Chromatography-Mass Spectrometry (GC-MS). In total, 65 and 58 compounds accounting for 90.3% ... -
Antibacterial poly{(4-vinyl phenylboronic acid)-co-[2-(dimethylamino)ethyl methacrylate]} copolymers and their application in water-based paints
Çiçek, Hüseyin; Koçak, Gökhan; Ceylan, Özgür; Kutluca, Emir Ahmet; Dikmen, Zeynep; Bütün, Vural (Wiley, 2018)Herein, we report the synthesis of poly(4-vinylphenylboronic acid) (PVPBA) and poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) homopolymers, copolymers, and their methyl, pentyl, and octyl quaternized forms as dopant ... -
Antibiofilm and anti-quorum sensing activities of polyethylene imine coated magnetite and nickel ferrite nanoparticles
Ceylan, Özgür; Tamfu, Alfred Ngenge; İspirli Doğaç, Yasemin; Teke, Mustafa (Springer Science and Business Media Deutschland GmbH, 2020)This study was aimed at synthesizing polyethyleneimine-coated magnetic nanoparticles and evaluating their effect on pathogenic bacteria. Polyethyleneimine-coated magnetite (PEIMnF) and nickel ferrite (PEINF) nanoparticles ... -
Antibiofilm and Anti-Quorum Sensing Potential of Cycloartane-Type Triterpene Acids from Cameroonian Grassland Propolis: Phenolic Profile and Antioxidant Activity of Crude Extract
Tamfu, Alfred Ngenge; Ceylan, Özgür; Cârâc, Geta; Talla, Emmanuel; Dinica, Rodica Mihaela (MDPI, 2022)Propolis is very popular for its beneficial health properties, such as antimicrobial activity and antioxidant effects. It is one of the most long-serving traditional medicines to mankind due to its interesting chemical ... -
Antibiofilm, Antioxidant, Antimutagenic Activities and Phenolic Compounds of Allium orientale BOISS.
Ceylan, Özgür; Alıç, Halime (Inst Tecnologia Parana, 2015)This is the first study to investigate the antibiofilm, antioxidant and antimutagenic activities and phenolic compounds of Allium orientale. Antimicrobial activity of ethanolic extracts of A. orientale was determined by a ... -
Antibiofilm, antiquorum sensing and antioxidant activity of secondary metabolites from seeds of Annona senegalensis, Persoon
Tamfu, Alfred Ngenge; Ceylan, Özgür; Fru, Godloves Chi; Öztürk, Mehmet; Duru, Mehmet Emin; Shaheen, Farzana (Academic Press Ltd- Elsevier Science Ltd, 2020)The increasing resistance of bacteria to antibiotics has motivated the interest in potent natural compounds capable of disrupting bacterial cell-to-cell communication. Column chromatography of seed extract of Annona ... -
Antimicrobial and anti-quorum-sensing properties and paint film usage of novel diazaborine-based copolymers
Koçak, Gökhan; Çiçek, Hüseyin; Ceylan, Özgür; Bütün, Vural (Wiley, 2019)To meet high hygiene requirements, intensive studies are being carried out on antimicrobial materials. This study reports the synthesis of 3-((1-hydroxybenzo[d][1,2,3]diazaborinin-2(1H)-yl)sulfonyl)propyl methacrylate ... -
Antioxidant and Anti-quorum Sensing Potential of Acer monspessulanum subsp monspessulanum Extracts
Ceylan, Özgür; Şahin, Mehtap Dönmez; Akdamar, Gültekin (Georg Thieme Verlag Kg, 2016)In this study, anti-quorum sensing, and antioxidant activities, and chemical composition of Acer monspessulanum subsp. monspessulanum extracts were evaluated. Determination of the antioxidant activity was revealed by DPPH ... -
Assessment of in vitro activities and chemical profiling of Senecio hoggariensis growing in Algerian Sahara
Arab, Yasmine; Şahin, Bihter; Ceylan, Özgür; Zellagui, Amar; Ölmez Tokul, Özge; Küçükaydın, Selçuk; Tamfu, Alfred Ngenge; Gherraf, Noureddine; Öztürk, Mehmet (Society for Indonesian Biodiversity, 2022)The in vitro antioxidant, anticholinesterase, tyrosinase inhibitory, antibiofilm, and anti-quorum sensing activities of the ethyl acetate extract of Senecio hoggariensis, growing in Algerian Sahara, were studied along with ... -
Assessment of the antibiofilm and antiquorum sensing activities of Eucalyptus globulus essential oil and its main component 1,8-cineole against methicillin-resistant Staphylococcus aureus strains
Merghni, Abderrahmen; Noumi, Emira; Hadded, Ons; Dridi, Neyla; Panwar, Harsh; Ceylan, Özgür; Snoussi, Mejdi (Academic Press Ltd- Elsevier Science Ltd, 2018)Antibacterial resistance is an increasingly serious threat to global public health. The search for new anti-infection agents from natural resources, with different mode of actions and competitive effects became a necessity. ... -
Characterisation of Streptomyces violascens OC125-8 lipase for oily wastewater treatment
Boran, Rukiye; Uğur, Aysel; Saraç, Nurdan; Ceylan, Özgür (Springer Heidelberg, 2019)In this study, the lipase-producing bacterium Streptomyces violascens (GenBank number MF621564) was identified, and the extracellular S. violascens OC125-8 lipase produced by this strain was characterised for use in ... -
Chemical composition and anti-biofilm activity of Thymus sipyleus BOISS. subsp sipyleus BOISS. var. davisianus RONNIGER essential oil
Ceylan, Özgür; Uğur, Aysel (Pharmaceutical Soc Korea, 2015)In this study, antimicrobial and antibiofilm activities and the chemical composition of Thymus sipyleus BOISS. subsp. sipyleus BOISS. var. davisianus RONNIGER essential oil was evaluated. The essential oil was obtained by ... -
Chemical composition, anti-quorum sensing, enzyme inhibitory, and antioxidant properties of phenolic extracts of clinopodium nepeta l. Kuntze
Beddiar, Hatem; Boudiba, Sameh; Benahmed, Merzoug; Ceylan, Özgür; Küçükaydın, Selçuk (MDPI, 2021)Phenolic extracts of Clinopodium nepeta were prepared and their preliminary phenolic profiles determined using HPLC-DAD with 26 phenolic standards. Apigenin (21.75 ± 0.41 µg/g), myri-cetin (72.58 ± 0.57 µg/g), and rosmarinic ... -
A chemometric study on phenolic profiles and biological properties of cotton honeys from Turkey
Çayan, Fatih; Tel-Çayan, Gülsen; Taş-Küçükaydın, Meltem; Küçükaydın, Selçuk; Korkmaz, Cansu; Duru, Mehmet Emin; Ceylan, Özgür (Springer Science and Business Media Deutschland GmbH, 2023)Honey, a nutritious and healthy product, has recently been the focus of research due to its characteristic chemical composition and a wide variety of biological properties. The current study aims to investigate the phenolic ... -
The constituents of essential oil and in vitro antimicrobial activity of Micromeria cilicica from Turkey
Duru, Mehmet Emin; Öztürk, Mehmet; Uğur, Aysel; Ceylan, Özgür (Elsevier Ireland Ltd, 2004)The chemical composition of the essential oil of Micromeria cilicica (Labiatae) that has been used in folk medicine were analysed by GC, GC-MS, H-1 NMR and C-13 NMR. The totals of 34 components in hydrodistillation, 30 ... -
Design andin vitroantibiofilm activity of propolis diffusion-controlled biopolymers
Ceylan, Özgür; Karakuş, Hatice; Çiçek, Hüseyin (Wiley, 2020)In this study, a novel pH-sensitive hydrogel beads that is based on gelatin/sodium alginate/chitosan (GEL/SA/CS) loaded with propolis ethanolic extracts (PE) were synthesized. The swelling behavior of GEL/SA/CS hydrogel ... -
Determination of antimicrobial and anti-quorum sensing activities of water and ethanol extracts of propolis
Sorucu, Ali; Ceylan, Özgür (Chartered Inst. of Building Services Engineers, 2021)Quorum Sensing is a special system between bacteria to communicate with the signal molecules. Propolis is a resin collected from plants by honey bees. The present study examined anti-quorum sensing and antimicrobial ... -
The effect of different feeding strategies on honey bee gut microbiota and the presence of Nosema
Topal, E.; Ceylan, Özgür; Tunca, R. İ.; Bay, V.; Aldemir, S.; İnci, H. (South African Journal for Animal Sciences, 2022)Colony development in honey bees depends on both the environmental conditions and their genetic structure. Nutrition is the one of the most important factors in the honey bee’s health. This study was carried out in 48 ... -
Evaluation of anti-quorum sensing and antibiofilm effects of secondary metabolites from Gambeya lacourtiana (De Wild) Aubr. & Pellegr against selected pathogens
Talla, Rostan Mangoua; Tamfu, Alfred Ngenge; Wakeu, Brussine Nadège Kweka; Ceylan, Özgür (BMC, 2023)Background: Microbial infections cause serious health problems especially with the rising antibiotic resistance which accounts for about 700,000 human deaths annually. Antibiotics which target bacterial death encounter ... -
HPLC-DAD Analysis and Versatile Bioactivities of Turkish Sunflower Honeys Using Chemometric Approaches
Duru, Mehmet Emin; Eroğlu, Büşra; Tel-Çayan, Gülsen; Taş-Küçükaydın, Meltem; Küçükaydın, Selçuk; Çayan, Fatih; Ceylan, Özgür (John Wiley and Sons Inc, 2023)Sunflower honey (SH) is bright yellow, fragrant, pollen-flavoured, slightly herbaceous and has a unique taste. The present research aims to examine the enzyme inhibitory, antioxidant, anti-inflammatory, antimicrobial and ...
