Yazar "Özel, Arzu" için listeleme
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Cloning, expression and characterization of alkaline phosphatase from a thermophilic bacterium Geobacillus caldoxylosilyticus TK4
Çöl, Melek; Çolak, Ahmet; Ertunga, Nagihan Sağlam; Yıldırım, Melike; Özel, Arzu (Turkish Biochemistry Society, 2010)Aim: To clone the gene for alkaline phosphatase (AP) from a novel thermophilic Geobacillus caldoxylosilyticus TK4 strain and to express and characterize this enzyme. Methods: The gene was cloned into pET28a(+) vector and ... -
Comparison of phenolic profiles and antioxidant activity of three Ornithogalum L. species
Renda, Gülin; Özel, Arzu; Turumtay, Emine Akyüz; Barut, Burak; Korkmaz, Büşra; Ayvaz, Melek Çol; Demir, Adem (2019)Background: Aboveground parts and bulbs of Ornithogalum species are consumed as food and used in traditional medicine in worldwide. Objective: It is aimed to report the antioxidant capacity and phenolic compounds content ... -
Design, synthesis and biological evaluation of water soluble and non-aggregated silicon phthalocyanines, naphthalocyanines against A549, SNU-398, SK-MEL128, DU-145, BT-20 and HFC cell lines as potential anticancer agents
Keleş, Turgut; Barut, Burak; Özel, Arzu; Bıyıklıoğlu, Zekeriya (Elsevier, 2021)Cancer has become an important public problem in worldwide since cancer incidence and mortality are growing rapidly. In this study, water soluble and non-aggregated silicon (IV) phthalocyanines and naphthalocyanines ... -
Isolation, production, and characterization of an extracellular lipase from Trichoderma harzianum isolated from soil
Bu çalışma, Trichoderma harzianum lipazının karakterizasyonu hakkında ilk rapordur. Yeni bir suş olan Trichoderma harzianum IDM14D topraktan izole edildi. İzole edilen bu suş, lipaz üretimi için çalkalamalı kültürde 30 ... -
The novel Zn(II) phthalocyanines: Synthesis, characterization, photochemical, DNA interaction and cytotoxic/phototoxic properties
Barut, Burak; Yalçın, Can Özgür; Demirbaş, Ümit; Akçay, Hakkı Türker; Kantekin, Halit; Özel, Arzu (Elsevier, 2020)In this study, peripherally and non-peripherally tetra substituted water soluble zinc(II) phthalocyanines (5a and 5b) were synthesized and characterized. Their photochemical and ct-DNA binding properties of them were ... -
Nutritional value of some wild edible mushrooms from Black Sea Region (Turkey)
Ayaz, Faik Ahmet; Torun, Hülya; Özel, Arzu; Çöl, Melek; Duran, Celal; Sesli, Ertuǧrul; Çolak, Ahmet (Turkish Biochemistry Society, 2011)Objectives: The aim of this study is to profile the nutritional content of eight edible mushrooms collected from East Black Sea region in Turkey. Methods: The eight different wild edible mushrooms (Boletopsis leucomelaena, ... -
Purification and characterisation of a polyphenol oxidase from Boletus erythropus and investigation of its catalytic efficiency in selected organic solvents
Özel, Arzu; Çolak, Ahmet; Arslan, Oktay; Yıldırım, Melike (Elsevier, 2010)Polyphenol oxidase (PPO) was purified from Boletus erythropus using a Sepharose 4B-L-tyrosine-p-amino benzoic acid affinity column. Optimum pH and temperature were found to be 8.0 and 20 °C, respectively, using 4-methylcatechol ... -
Spectroscopic, electrochemical, theoretical characterization and biological evaluation of a ferrocenyl-substituted unsymmetric azine ligand and its Cu(II) complex
Özel, Arzu; Karaoğlu, Kaan; Serbest, Kerim; Gürcan, Nihan; Emirik, Mustafa; Coruh, Ufuk (Taylor & Francis Ltd, 2016)Ferrocenyl-substituted unsymmetrical azine and its Cu(II) complex were prepared. the redox active ferrocene-based azine was obtained by condensation of 1-[(E)-hydrazono]-5-bromo-2-hydroxybenzene with ferrocene carboxaldehyde. ... -
Synthesis and in vitro alpha-glucosidase and cholinesterases inhibitory actions of watersoluble metallophthalocyanines bearing ({6-[3-(diethylamino)phenoxy]hexyl}oxy groups
Keleş, Turgut; Bıyıklıoğlu, Zekeriya; Akkaya, Didem; Özel, Arzu; Barut, Burak (Scientific Technical Research Council Turkey, TÜBİTAK, 2022)In this paper, we have prepared peripherally tetra-({6-[3-(diethylamino)phenoxy]hexyl}oxy substituted cobalt(II), copper(II), manganese(III) phthalocyanines (3, 4, 5) and their water-soluble derivatives (3a, 4a, 5a). Then, ... -
Synthesis and in vitro α-glucosidase and cholinesterases inhibitory actions of water-soluble metallophthalocyanines bearing ({6-[3-(diethylamino)phenoxy]hexyl}oxy groups
Keleş, Turgut; Bıyıklıoğlu, Zekeriya; Akkaya, Didem; Özel, Arzu; Barut, Burak (TUBITAK, 2022)In this paper, we have prepared peripherally tetra-({6-[3-(diethylamino)phenoxy]hexyl}oxy substituted cobalt(II), copper(II), manganese(III) phthalocyanines (3, 4, 5) and their water-soluble derivatives (3a, 4a, 5a). Then, ... -
Synthesis of novel symmetrical 1,4-disubstituted 1,2,3-bistriazole derivatives via 'click chemistry' and their biological evaluation
Düğdü, Esra; Unluer, Dilek; Çelik, Fatih; Sancak, Kemal; Karaoğlu, Şengül Alpay; Özel, Arzu (Mdpi, 2016)A series of symmetric bis-1,2,3-triazole compounds 2-5(a-f) were synthesized as potential antioxidant agents via click chemistry. Their structures were confirmed by H-1-NMR and C-13-NMR. All of the synthesized compounds ... -
Synthesis of some novel 1,2,4-triazol-3-one derivatives bearing the salicyl moiety and their anticonvulsant activities
Kahveci, Bahittin; Menteşe, Emre; Akkaya, Emre; Yılmaz, Fatih; Doğan, İnci Selin; Özel, Arzu (Wiley-V C H Verlag Gmbh, 2014)A series of new 1,2,4-triazole-3-one derivatives bearing the salicyl moiety were synthesized by using microwave irradiation, and their chemical structures were identified by IR, H-1 NMR, C-13 NMR, elemental analysis, and ...
