Yazar "Tay, Turgay" için listeleme
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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 ... -
Hiidrofobik karakterli polimer kürecikleri üzerine enzim immobilizasyonu ve kinetiğinin araştırılması
Borucu, Deniz Burçak (Anadolu Üniversitesi, 2012)Bu yüksek lisans tez çalışmasında, 5-(4-aminofenil)-10,15,20-trifenilporfirin içeren hidrofobik karakterli polimer kürecikler sentezlenmiştir. Sentezlenen bu hidrofobik polimerik kürecikler üzerine lignin peroksidaz enzimi ... -
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 ... -
Metallo tetrafenilporfirin içeren polimer sentezi ve katalizör olarak kullanımının araştırılması
Evci, Mehtap (Anadolu Üniversitesi, 2013)Bu çalışmada emülsiyon polimerizasyon tekniği kullanılarak rijit polimerler sentezlenmiştir. Polimer sentezinde monomer olarak metakriloil klorür (MA-Cl) ve çapraz bağlayıcı olarak trimetilolpropantrimetaakrilat (TMPTMA) ... -
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 ... -
Preparation and characterization of activated carbon from waste biomass
Tay, Turgay; Uçar, Suat; Karagöz, Selhan (Elsevier Science BV, 2009)Lignocellulosic materials are good and cheap precursors for the production of activated carbon. In this study, activated carbons were prepared from the pyrolysis of soybean oil cake at 600 and 800 C by chemical activation ... -
Preparation and characterization of activated carbon produced from pomegranate seeds by ZnCl2 activation
Uçar, Suat; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Elsevier Science BV, 2009)In this study, pomegranate seeds, a by-product of fruit juice industry, were used as precursor for the preparation of activated carbon by chemical activation with ZnCl2. The influence of process variables such as the ... -
Preparation and Characterization of Activated Carbons from Waste Melamine Coated Chipboard by NaOH Activation
Zengin, Ayşe; Akalın, Mehmet Kuddusi; Tekin, Kubilay; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Foundation Environmental Protection & Research-Fepr, 2012)Activated carbons were prepared from the pyrolysis of waste melamine coated chipboard at 600 and 800 degrees C by chemical activation with NaOH. The effects of the carbonization temperature and concentration of chemical ... -
Preparation of novel antimicrobial polymer colloids based on (+)-usnic acid and poly(vinylbenzyl chloride)
Karabacak, R. Bengü; Tay, Turgay; Kıvanç, Merih (Elsevier Science BV, 2014)A novel antimicrobial colloidal system based on (+)-usnic acid, an important natural antimicrobial molecule, and poly(vinylbenzyl chloride) (PVBC) colloids was synthesized. The chloromethyl functionality on poly(vinylbenzyl ... -
Removal of Acid Blue 294 (AB294) dye from aqueous solutions by using lichen Umbilicaria decussata biomass
Tay, Turgay; Keçili, Rüstem (2016)Bu çalışmada liken Umbilicaria decussata biyokütlesinin sulu çözeltilerde AB294'e karşı bağlanma davranışı araştırılmıştır. AB294 bağlanmasına pH, başlangıç AB294 konsantrasyonu, zaman ve sıcaklığın etkisi incelenmiştir. ... -
Removal of copper(II) and nickel(II) ions from aqueous solution using non-living lichen Ramalina fraxinea biomass: investigation of kinetics and sorption isotherms
Candan, Mehmet; Tay, Funda; Avan, İlker; Tay, Turgay (Desalination Publ, 2017)Studies in the field of heavy metal ion removal from industrial wastewater using biomass are increasing in number due to highly efficient and cost-effective applications. In this study, we report the use of non-living ... -
Removal of Copper(Ii) Ions From Aqueous Solution By a Lactic Acid Bacterium
Yılmaz, M.; Tay, Turgay; Kıvanç, Merih; Türk, Hayrettin (Brazilian Soc Chemical Eng, 2010)Enterococcus faecium, a lactic acid bacterium (LAB), was evaluated for its ability to remove copper(II) ions from water. The effects of the pH, contact time, initial concentration of copper(II) ions, and temperature on the ... -
Removal of lead (II) and nickel (II) ions from aqueous solution using activated carbon prepared from rapeseed oil cake by Na2CO3 activation
Uçar, Suat; Erdem, Murat; Tay, Turgay; Karagöz, Selhan (Springer, 2015)In this study, rapeseed oil cake as a precursor was used to prepare activated carbons by chemical activation with sodium carbonate (Na2CO3) at 600 and 800 A degrees C. The activated carbon with the highest surface area of ... -
Removal of Lead (II) Ions from Aqueous Solutions onto Activated Carbon Derived from Waste Biomass
Erdem, Murat; Uçar, Suat; Karagöz, Selhan; Tay, Turgay (Hindawi Publishing Corporation, 2013)The removal of lead (II) ions from aqueous solutions was carried out using an activated carbon prepared from a waste biomass. The effects of various parameters such as pH, contact time, initial concentration of lead (II) ... -
Screening the antifungal activity of soilborne actinomycetes
Türkiye'nin batısından toplanan 35 toprak örneğinden izole edilen toplam 288 aktinomiset suşu Aspergillus niger (ATCC-1094), A. parasiticus (NRRL-465), Fusarium moniliforme (NRRL 1866), F. solani (NRRL-13414), Penicillium ...