Yazar "Tay, Turgay" için Fen Fakültesi listeleme
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Activated Carbons From Grape Seeds By Chemical Activation With Potassium Carbonate And Potassium Hydroxide
Okman, İrem; Karagöz, Selhan; Tay, Turgay; Erdem, Murat (Elsevier, 2014)Activated carbons were produced from grape seed using either potassium carbonate (K2CO3) or potassium hydroxide (KOH). The carbonization experiments were accomplished at 600 and 800 degrees C. The effects of the experimental ... -
Activated carbons from waste biomass by sulfuric acid activation and their use on methylene blue adsorption
Karagöz, Selhan; Tay, Turgay; Uçar, Suat; Erdem, Murat (Elsevier Sci LTD, 2008)Preparation of the activated carbons from sunflower oil cake by sulphuric acid activation with different impregnation ratios was carried out. Laboratory prepared activated carbons were used as adsorbents for the removal ... -
Adsorption of Methylene Blue From Aqueous Solution on Activated Carbon Produced From Soybean Oil Cake By Koh Activation
Tay, Turgay; Erdem, Murat; Ceylan, Burak; Karagöz, Selhan (North Carolina State University Dept Wood & Paper Sci, 2012)This study presents the adsorption behavior of the methylene blue (MB) dye onto the activated carbon produced from soybean oil cake by chemical activation with KOH at 800 degrees C. The adsorption isotherms, kinetic models, ... -
Angiogenesis Inhibition by A Lichen Compound Olivetoric Acid
Koparal, Ayşe Tansu; Ulus, Gönül; Zeytinoğlu, Melih; Tay, Turgay; Türk, Ayşen Özdemir (Wiley-Blackwell, 2010)Lichens have been used in folk medicine for centuries and are symbiotic organisms of fungi and algae that produce unique secondary metabolites. Olivetoric acid is one of these secondary metabolites. In the present studs ... -
The Antimicrobial Activity of Extracts of the Lichen Cladonia foliacea and Its (-)-Usnic Acid, Atranorin, and Fumarprotocetraric Acid Constituents
The antimicrobial activity of the chloroform, diethyl ether, acetone, petroleum ether, and ethanol extracts of the lichen Cladonia foliacea and its (-)-usnic acid, atranorin, and fumarprotocetraric acid constituents against ... -
Antimicrobial activity of lichen Bryoria capillaris and its compound barbatolic acid
Sarıözlü, Nalan Yılmaz; Cankılıç, Meral Yılmaz; Candan, Mehmet; Tay, Turgay (Scientific Publishers of India, 2016)Antibacterial, antifungal activity and MIC values of the acetone, methanol and chloroform extracts of the lichen Bryoria capillaris (Ach.) and its barbatolic acid constituent have been investigated against Gram-positive ... -
Antimicrobial activity of lichen Bryoria capillaris and its compound barbatolic acid.
Sarıözlü, Nalan Yılmaz; Cankılıç, Meral Yılmaz; Candan, Mehmet; Tay, Turgay (Scientific Publishers India, 2016)Antibacterial, antifungal activity and MIC values of the acetone, methanol and chloroform extracts of the lichen Bryoria capillaris (Ach.) and its barbatolic acid constituent have been investigated against Gram-positive ... -
Antimicrobial and Antioxidant Activities of Extracts and Lichen Acids Obtained From Some Umbilicaria Species From Central Anatolia, Turkey
Bucukoğlu, Tuba Zeytun; Albayrak, Sevil; Halıcı, M. Gökhan; Tay, Turgay (Wiley-Blackwell, 2013)In this study, the methanolic extracts and lichens acids obtained from six Umbilicaria species were tested for their antimicrobial activity (against three Gram-positive bacteria, five Gram-negative bacteria and two yeasts ... -
Biosorption of Cadmium Ions from Aqueous Solution Onto Non-living Lichen Ramalina fraxinea Biomass
Tay, Turgay; Candan, Mehmet; Erdem, Murat; Çimen, Yasemin; Türk, Hayrettin (Wiley-V C H Verlag GMBH, 2009)Living lichens are known to accumulate metals across their surface. in this study, the biosorption of cadmium ions (Cd(2+)) by the lichen Ramalina fraxinea was investigated in aqueous solution in a batch system with respect ... -
Design and Preparation of Nano-Lignin Peroxidase (NanoLiP) by Protein Block Copolymerization Approach
Tay, Turgay; Köse, Ender; Keçili, Rüstem; Say, Rıdvan (MDPI AG, 2016)This study describes the preparation of nanoprotein particles having lignin peroxidase (LiP) using a photosensitive microemulsion polymerization technique. The protein-based nano block polymer was synthesized by cross-linking ... -
Evaluation of the sunscreen lichen substances usnic acid and atranorin
Varol, Mehmet; Tay, Turgay; Candan, Mehmet; Türk, Ayşen Özdemir; Koparal, Ayşe Tansu (Inst Histol Embriol-Conicet, 2015)Usnic acid and atranorin are known as both sunscreen substances in natural lichen population and cytotoxic substances on human cell lines. Both substances were isolated from the acetone extracts of Cladonia foliacea and ... -
Insecticidal activity of major lichen compounds, (-)- and (+)-usnic acid, against the larvae of house mosquito, Culex pipiens L.
Çetin, Hüseyin; Tufan-Çetin, Özge; Türk, Ayşe Özdemir; Tay, Turgay; Candan, Mehmet; Yanıkoğlu, Atila; Sumbul, Hüseyin (Springer, 2008)In this research, (-)-usnic acid and (+)-usnic acid, commonly encountered lichen secondary metabolites, were evaluated for their insecticidal effects against the larvae of Culex pipiens L. (Diptera: Culicidae) under ... -
Investigation of Er doped zinc borate glasses by low-temperature photoluminescence
Kostka, P.; Kabalci, I.; Tay, Turgay; Gladkov, P.; Zavadil, J. (Elsevier Science BV, 2017)Er3+ doped (95-x)B2O3-xZnO-5TiO(2) (x = 45, 50 and 55 mol%) bulk glasses were prepared by conventional melt quenching method and investigated by transmission and photoluminescence (PL) spectroscopy. Transmission spectra ... -
Larvicidal activity of some secondary lichen metabolites against the mosquito Culiseta longiareolata Macquart (Diptera: Culicidae)
Çetin, Hüseyin; Tufan-Çetin, Özge; Türk, Ayşe Özdemir; Tay, Turgay; Candan, Mehmet; Yanıkoğlu, Atila; Sumbul, Hüseyin (Taylor & Francis LTD, 2012)The larvicidal activity of some lichen metabolites, (+)-usnic acid, atranorin, 3-hydroxyphysodic acid and gyrophoric acid, against the second and third instar larvae of the mosquito Culiseta longiareolata were studied. All ... -
Optical absorption and spectroscopic properties of thulium doped (TeO2)(Nb2O5)(TiO2) glasses
Kabalcı, İdris; Tay, Turgay; Özen, Gönül (Wiley-V C H Verlag GMBH, 2011)A type of thulium doped tellurite based optical glasses was prepared through conventional melt quenching technique. In the experiments, the effect of different Tm3+ ion concentration and glass composition on optical ... -
Photoprotective Activity of Vulpinic and Gyrophoric Acids Toward Ultraviolet B-Induced Damage in Human Keratinocytes
Varol, Mehmet; Türk, Ayşen Özdemir; Candan, Mehmet; Tay, Turgay; Koparal, Ayşe Tansu (Wiley, 2016)Vulpinic and gyrophoric acids are known as ultraviolet filters for natural lichen populations because of their chemical structures. However, to the best of our knowledge, there has been no reference to their cosmetic ...