Browsing by Author "Okumuş, Veysi"
Now showing items 1-11 of 11
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Biological assays and theoretical density functional theory calculations of Rh(I), Ir(III), and Ru(II) complexes of chiral phosphinite ligand
Rafikova, Khadichakhan; Binbay, Nil Ertekin; Meriç, Nermin; Kerimkulova, Aygül; Zazybin, Alexey; Binbay, Veysel; Okumuş, Veysi; Kayan, Cezmi; Işık, Uğur; Aydemir, Murat (Wiley, 2020)Four metal complexes, IL-OPPh2-Ru-p-cymene (3), IL-OPPh2-Ru-benzene (4), IL-OPPh2-Ir-Cp* (5), IL-OPPh2-Rh-COD (6), have been evaluated for in vitro antioxidant activity such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical ... -
Biological assays, electrochemical behavior, and theoretical DFT calculations of Ru(II) complexes of chiral phosphinite based based on ?-amino alcohols: Transfer hyrogenation of ketones using a HCOOH/Et3N mixture
Khadichakhan, Rafikova; Meriç, Nermin; Binbay, Nil Ertekin; Okumuş, Veysi; Sever, M. Şerif; Belyankova, Yelizaveta; Aydemir, Murat (Elsevier B.V., 2024)Synthesis of two phosphinite ligands based on β-amino alcohols, in high yields has been demonstrated. When we treated [Ru(arene)(μ-Cl)Cl]2 {arene:p-cymene,benzene} with chelating phosphinite ligands, we obtained neutral ... -
Biosorption of 2,4-d, 2,4-DP, and 2,4-DB from aqueous solution by using thermophilic anoxybacillus flavithermus and analysis by high-performance thin layer chromatography: Equilibrium and kinetic studies
Özdemir, Sadin; Bekler, Fatma Matpan; Okumuş, Veysi; Dündar, Abdurrahman; Kılınç, Ersin (Wiley, 2012)In this study, the potential biosorption characteristics of the thermophilic Anoxybacillus flavithermus (A. flavithermus) was investigated for the removal of the chlorophenoxy acid derivates, namely, 2,4-dichlorophenoxy ... -
Citrullus lanatus L. (karpuz) ve Cucumis melo L. (kavun) kabuğu kullanılarak katı-faz fermentasyon tekniği (SSF) ile topraktan izole edilen Bacillus sp.'den alkalin serin proteaz eldesi
Okumuş, Veysi (2016)Bu çalışmada Bacillus sp.'den SSF tekniğiyle alkalin serin proteaz üretimi araştırıldı. Bacillus sp.'nin hangi substratta daha iyi proteaz ürettiğini tespit etmek amacıyla karpuz kabuğu, kavun kabuğu, mercimek kabuğu, ... -
Determination of cytotoxic, anticholinesterase, antioxidant and antimicrobial activities of some wild mushroom species
Dündar, Abdurrahman; Okumuş, Veysi; Özdemir, Sadin; Çelik, Kadir Serdar; Boğa, Mehmet; Özçağlı, Eren (Informa Healthcare, 2016)In the performed study of methanol extraction of wild edible mushroom species; Agaricus arvensis, Agaricus campestris, Armillaria mellea, Fomes fomentarius, Coprinus micaceus, Coriolus versicolor and Lactarius deliciosus ... -
Diyarbakır karpuz genotiplerinin (Citrullus lanatus cv. `Beyazkış', `Karakış' ve `Sürme') mikroçoğaltılması üzerine biyoteknolojik araştırmalar
Okumuş, Veysi (2016)Bu çalışmada bölgemizi istila eden yabancı hibrit tohumlar yüzünden yok olma tehlikesiyle karşı karşıya bulunan yerel Diyarbakır karpuz genotiplerinin (Citrullus lanatus cv. `Beyazkış', `Karakış' ve `Sürme') hızlı bir ... -
Half-sandwich ruthenium(II) and iridium(III) complexes of imidazole based phosphinite ligands: antioxidant and antibacterial activities as well as electrochemical properties
Işık, Uğur; Rafikova, Khadichakhan; Meriç, Nermin; Güzel, Remziye; Kerimkulova, Aygül; Akimbek, Arailym; Okumuş, Veysi; Durap, Feyyaz; Kayan, Cezmi; Aydemir, Murat (John Wiley and Sons Inc, 2024)Ruthenium(II) and iridium(III) complexes of phosphinites including imidazole moiety were synthesized and characterized by microanalysis, IR, MS, and NMR spectroscopies. Antibacterial activity against Gram-positive and ... -
In vitro propagation of Diyarbakır watermelons and comparison of direct-seeded and transplanted watermelon
Başaran, Davut; Pirinç, Vedat; Onay, Ahmet; Okumuş, Veysi (2011)Sürgün ucu eksplantları kullanılarak Diyarbakır karpuz tipleri Sürme, Beyazkış ve Karakış’ın mikroçoğaltımı için hızlı bir protokol geliştirilmiştir. İn vitro koşullarda çimlendirilmiş 5 günlük fi delerin sürgün uçları 3 ... -
The obtainment of alkaline serine protease from Bacillus sp. isolated from solid through the solid-state fermentation technique by using rind of the citrullus lanatus L. (watermelon) and cucumis melo L. (melon)
Fincan, Sema Agüloğlu; Okumuş, Veysi (Dicle Üniversitesi Ziya Gökalp Eğitim Fakültesi, 2007)Bu çalışmada, ekonomik önemi olmayan ve birikerek çevre kirliliğine yol açan karpuz ve kavun kabuğu katı substrat olarak kullanılarak Katı-Faz Fermentasyonu (SSF) yöntemi ile Bacillus sp.’den yüksek miktarda alkalin serin ... -
Synthesis of cis-1,2-diol-type chiral ligands and their dioxaborinane derivatives: Application for the asymmetric transfer hydrogenation of various ketones and biological evaluation
Kılıç, Ahmet; Balcı, Tuğba Ersayan; Arslan, Nevin; Aydemir, Murat; Durap, Feyyaz; Okumuş, Veysi; Tekin, Recep (Wiley, 2020)Two cis-1,2-diol-type chiral ligands (T-1 and T-2) and their tri-coordinated chiral dioxaborinane (T(1-2)B(1-2)) and four-coordinated chiral dioxaborinane adducts with 4-tert-butyl pyridine sustained by N -> B dative bonds ... -
Well designed iridium-phosphinite complexes: Biological assays, electrochemical behavior and density functional theory calculations
Khadichakhan Rafikova; Meriç, Nermin; Binbay, Nil Ertekin; Okumuş, Veysi; Erdem, Kemal; Belyankova, Yelizaveta; Güzel, Remziye (Elsevier B.V., 2024)Mononuclear phosphinite Iridium complexes based on ferrocene group have been prepared and characterized by various spectroscopic techniques. The complexes were subjected to cyclic voltammetry studies in order to determine ...
