Browsing Makale Koleksiyonu by Author "Bagda, Esra"
Now showing items 1-20 of 21
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Analytical approaches for clarification of DNA-double decker phthalocyanine binding mechanism: As an alternative anticancer chemotherapeutic
Bagda, Esra; Yabas, Ebru; Bagda, Efican (PERGAMON-ELSEVIER SCIENCE LTD, 2017)In the present study a novel water soluble double-decker phthalocyanine was synthesized and calf thymus DNA interaction of the synthesized double-decker phthalocyanine was investigated. 5-(3-pyridyl)-1,3,4-oxadiazole ... -
Circular dichroism spectroscopic investigation of double-decker phthalocyanine with G-Quadruplex as promising telomerase inhibitor
Bagda, Efkan; Bagda, Esra; Yabas, Ebru (ELSEVIER SCIENCE BV, 2017)In the present study, interaction of a double-decker phthalocyanine with two G-quadruplex DNA, Tel 21 and cMYC, was investigated. To the best of our knowledge, this is the first study about G-quadruplex-double decker ... -
Crosslinked Egg White as Eco-Friendly, Reusable, and Cost-Effective Biosorbent for Rapid Removal of Indigo Carmine
Oymak, Tulay; Bagda, Esra (WILEY, 2018)In the present study, crosslinked egg white is used as a low-cost biosorbent for removal of a toxic dye, indigo carmine. The biosorbent preparation is easy and only N, N'-methylenebisi(acrylamide) is added for crosslinking. ... -
Determination of uranium in water samples with chromogenic reagent 4-(2-thiazolylazo) resorcinol after ionic liquid based dispersive liquid liquid microextraction
Bagda, Esra; Tuzen, Mustafa (SPRINGER, 2016)A simple extraction and spectrophotometric determination of trace amount of uranium was described. The method is based on complex formation between uranium and 4-(2-thiazolylazo)resorcinol (TAR), a well known ligand, ... -
Determination of vanadium in groundwater samples with an improved kinetic spectrophotometric method
Bagda, Esra (TAYLOR & FRANCIS LTD, 2014)… -
Determination of zirconium in water, dental materials and artificial saliva after surfactant assisted dispersive ionic liquid based microextraction
Bagda, Esra; Tuzen, Mustafa (ROYAL SOC CHEMISTRY, 2015)In this study, an extractive spectrophotometric method is proposed for the determination of trace amounts of zirconium. The method is based on the complex formation between zirconium and 2-(5-bromo-2-pyridylazo)-5-(diethylamino) ... -
Effective uranium biosorption by macrofungus (Russula sanguinea) from aqueous solution: equilibrium, thermodynamic and kinetic studies
Bagda, Esra; Sari, Ahmet; Tuzen, Mustafa (SPRINGER, 2018)Russula sanguinea (R. sanguninea) macrofungus was employed as a novel cost-effective biosorbent for efficient removal of U(VI) ions from aqueous solution. FT-IR spectroscopy and SEM/EDS technique were used for morphological ... -
Equilibrium, thermodynamic and kinetic investigations for biosorption of uranium with green algae (Cladophora hutchinsiae)
Bagda, Esra; Tuzen, Mustafa; Sari, Ahmet (ELSEVIER SCI LTD, 2017)Removal of toxic chemicals from environmental samples with low-cost methods and materials are very useful approach for especially large-scale applications. Green algae are highly abundant biomaterials which are employed ... -
Feasibility of tetracycline, a common antibiotic, as chelating agent for spectrophotometric determination of UO22+ after cloud point extraction
Bagda, Esra; Yabas, Ebru; Karakus, Nihat (SPRINGER, 2014)A cloud point extraction (CPE) procedure was presented for the preconcentration of UO22+ ion in different water samples. Tetracycline (TC) is the second most widely used antibiotics in the world and is used as chelating ... -
The feasibility of using Rosa canina galls as an effective new biosorbent for removal of methylene blue and crystal violet
Bagda, Esra (DESALINATION PUBL, 2012)In this study, removal of two cationic dyes, basic blue 9 (BB9) and basic violet 3 (BV3) with Rosa canina galls (RCG), was investigated. The parameters that affect the biosorption process such as pH of the solution, amount ... -
G-quadruplex and calf thymus DNA interaction of quaternized tetra and octa pyridyloxy substituted indium (III) phthalocyanines
Bagda, Efkan; Bagda, Esra; Durmus, Mahmut (ELSEVIER SCIENCE SA, 2017)The interactions of small molecules with G-quadruplex and double stranded DNA are important due to their potential biological and medical usages. In the present paper, the interactions of indium (III) phthalocyanines ... -
Highly Simple Deep Eutectic Solvent Extraction of Manganese in Vegetable Samples Prior to Its ICP-OES Analysis
Bagda, Esra; Altundag, Huseyin; Soylak, Mustafa (HUMANA PRESS INC, 2017)In the present work, simple and sensitive extraction methods for selective determination of manganese have been successfully developed. The methods were based on solubilization of manganese in deep eutectic solvent medium. ... -
Investigation of kinetic and thermodynamic characteristics of removal of tetracycline with sponge like, tannin based cryogels
Ersan, Mehtap; Bagda, Esra; Bagda, Efkan (ELSEVIER SCIENCE BV, 2013)The removal of tetracycline (TC) from aqueous environment by new type of sorbents, tannin based cryogels (TAB CRGs) and control cryogels (CRGs) was studied in a batch system. The experimental parameters that affect the ... -
Ionic liquid dispersive microextraction and spectrophotometric determination of trace uranyl ion in water samples
Bagda, Esra; Tuzen, Mustafa (SPRINGER, 2015)In the present study, spectrophotometric determination of uranyl with 2-(5-Bromo-2-pyridylazo)-5-(diethylamino) phenol after ionic liquid based microextraction has been developed. Effect of experimental parameters were ... -
A Novel Selective Deep Eutectic Solvent Extraction Method for Versatile Determination of Copper in Sediment Samples by ICP-OES
Bagda, Esra; Altundag, Huseyin; Tuzen, Mustafa; Soylak, Mustafa (SPRINGER, 2017)In the present study, a simple, mono step deep eutectic solvent (DES) extraction was developed for selective extraction of copper from sediment samples. The optimization of all experimental parameters, e.g. DES type, ... -
REMOVAL OF BASIC BLUE AND CRYSTAL VIOLET WITH A NOVEL BIOSORBENT: OAK GALLS
Bagda, Esra; Bagda, Efkan (SCIBULCOM LTD, 2012)In this study, the use of an extraordinary plant tissue, gall, has been studied for the removal of 2 differrent dyes. The adsorptions of basic blue (BB) and crystal violet (CV) were studied on raw Quercus macranthera galls ... -
A simple and sensitive vortex-assisted ionic liquid-dispersive microextraction and spectrophotometric determination of selenium in food samples
Bagda, Esra; Tuezen, Mustafa (ELSEVIER SCI LTD, 2017)In the present study, a novel and eco-friendly vortex-assisted ionic liquid-based microextraction method was developed for the determination of selenium in food. The microextraction method is based on the liberation of ... -
Solid phase extraction of uranium on a new brush type graft copolymer and spectrophotometric determination of its in water samples
Tuzen, Mustafa; Bagda, Esra; Hazer, Baki (SPRINGER, 2016)A new versatile solid phase extraction and spectrophotometric determination of uranium (VI) was proposed with using poly(caprolactone-b-vinyl benzyl chloride-g-dimethyl amino ethyl methacrylate), poly(CL-b-VB-g-DMAEMA), ... -
Thermodynamics and Kinetics of Biosorption of Vanadium with Macrofungus (Hypholoma fasciculare) and Determination by GFAAS
Bagda, Esra; Tuzen, Mustafa; Sari, Ahmet; Shemsi, Ahsan Mushir; Bukhari, Alaadin A. (PERKIN-ELMER CORP, 2018)In the present study, a macrofungus, Hypholoma fasciculare (H. fasciculare), was employed for the biosorption of vanadium from aqueous solutions. The characterization of H. fasciatlare was conducted using the FT-IR and ... -
Uranyl Ions Removal by Quercus macrenthera Gall's Extract-Based Cryogels with Extreme Characteristics
Bagda, Esra; Zonuz, Nuray Akkaya (WILEY, 2014)In this study, one type of oak galls (galls of Quercus macrenthera, QMG) was used as tannin source for the production of tannic acid-based cryogels (CRGs). QMG-CRGs were characterized with scanning electron microscopy and ...