Browsing Fen-Edebiyat Fakültesi by Subject "Polymer Science"

Now showing items 1-20 of 42

1,3,5-Triazine-pentaethylenehexamine polymer for the adsorption of palladium (II) from chloride-containing solutions

Merve Sayin; Can, Mustafa; İmamoğlu, Mustafa; Arslan, Mustafa (ELSEVIER, 2015)

A triazine-hexamine (TAPEHA) polymer demonstrating high acid-resistance, good affinity to noble metals, and a high density of amine and triazine functional groups has been designed and synthesized. The obtained polymer was ...
A novel Cu(II) Complex of Picolinate and 1,10-Phenanthroline: Preparation, Crystal Structure Determination, Spectroscopic Characterization and Nonlinear Optical Studies

Tamer, Ömer; Avcı, Davut; Atalay, Yusuf (SPRINGER, 2017)

A newly synthesized copper (II) complex of picolinic acid (also known as 2-pyridinecarboxylic acid) and 1,10-phenanthroline, [Cu(pic)(2)(phen)]center dot H2O, has been prepared, and its crystal structure has been fully ...
A novel serine protease from strawberry (Fragaria ananassa): Purification and biochemical characterization

Alıcı, Esma Hande; Arabacı, Gülnur (ELSEVIER, 2018)

In this study, a protease enzyme was purified from strawberry by using Sepharose-4B-L-tyrosine-p-amino benzoic acid affinity chromatography. The molecular weight of pure protease was determined 65.8 kDa by SDS-PAGE. The ...
Adsorption of rhodium(III) ions onto poly(1,8-diaminonaphthalene) chelating polymer: Equilibrium, kinetic and thermodynamic study

Olgun, Uğursoy; Gülfen, Mustafa (ELSEVIER, 2013)

In the present work, poly(1,8-diaminonaphthalene) (poly(1,8-DAN)) was synthesized by the reaction of 1,8-diaminonaphthalene (1,8-DAN) with ammonium persulfate (APS) and then the equilibrium, kinetics and thermodynamics of ...
Au (III) uptake by triazine polyamine polymers: Mechanism, kinetic and equilibrium studies

Can, Mustafa; Melek Dogan; İmamoğlu, Mustafa; Arslan, Mustafa (ELSEVIER SCIENCE BV, 2016)

Triazine-polyamine polymers were successfully synthesized and adsorption of the gold (III) ions from chloride containing solutions was carried out by comparing the effect of amine chain lengths in the polymers triazine-e ...
Characterization and immobilization of protease and lipase on chitin-starch material as a novel matrix

Wesen Adel Mehdi; Atheer Awad Mehde; Özacar, Mahmut; Zeynep Ozacar (ELSEVIER SCIENCE BV, 2018)

Protease and lipase were purified from sunflower seeds by frequent purification steps with molecular weights of 72.90 kDa and 27.50 kDa, respectively. The purified lipase and protease were immobilized on various carriers ...
Controlling the electrical characteristics of Au/n-Si structure with and without (biphenyl-CoPc) and (OHSubs-ZnPc) interfacial layers at room temperature

Nalan Baraz; Ibrahim Yucedag; Ahmet Demir; Gulcin Ersoez; Semsettin Altindal; Kandaz, Mehmet (WILEY, 2017)

In order to interpret well whether or not the organic or polymer interfacial layer is effective on performance of the conventional Au/n-Si (metal semiconductor [MS]) type Schottky barrier diodes (SBDs), in respect to ...
Covalent immobilization of trypsin onto modified magnetite nanoparticles and its application for casein digestion

Atacan, Keziban; Çakıroğlu, Bekir; Özacar, Mahmut (ELSEVIER SCIENCE BV, 2017)

The immobilization method consists of the production magnetite nanoparticles (Fe3O4) by solvothermal treatment of FeCl3 and sodium acetate (NaAc) in the presence of ethylene glycol. Subsequently, the surface of magnetite ...
Electrochemical metal-ion sensors based on a novel manganese phthalocyanine complex

Kandaz, Mehmet (ELSEVIER SCIENCE SA, 2012)

In this paper, we investigated the electrochemical metal-ion sensor activity of a manganese phthalocyanine (MnPc). For this purpose, interactions of MnPc with various transition metal ions were examined in solution and in ...
Equilibrium, kinetics, and thermodynamics of Pd(II) adsorption onto poly(m-aminobenzoic acid) chelating polymer

Elif Mildan; Gülfen, Mustafa (WILEY, 2015)

This study describes the equilibrium, kinetics, and thermodynamics of the palladium(II) (Pd(II)) adsorption onto poly(m-aminobenzoic acid) (p-mABA) chelating polymer. The p-mABA was synthesized by the oxidation reaction ...
ESI-MS measurements for the equilibrium constants of copper(II)-insulin complexes

Gülfen, Mustafa; Özdemir, Abdil; Jung-Lee Lin; Chung-Hsuan Chen (ELSEVIER SCIENCE BV, 2018)

Trace elements regulate many biological reactions in the body. Copper(II) is known as one of trace elements and capable of binding to proteins. Insulin is a blood glucose-lowering peptide hormone and it is secreted by the ...
Evaluation of different saccharides and chitin as eco-friendly additive to improve the magnetic cross-linked enzyme aggregates (CLEAs) activities

Atheer Awad Mehde; Wesen Adel Mehdi; Özacar, Mahmut; Zeynep Ziyade Ozacar (ELSEVIER SCIENCE BV, 2018)

The cross-linked enzyme aggregates (CLEAs) involves formation of a number of covalent bonds between enzyme and the matrix using glutaraldehyde. In general, amino groups of lysine, sulthydryl groups of cysteine, phenolic ...
Genetic polymorphisms of human transcription factor-7 like 2 (TCF7L2), beta-defensin (DEFB1) and CD14 genes in nephrolithiasis patients

Wesen Adel Mehdi; Atheer Awad Mehde; Raha Ahmed Raus; Faridah Yusof; Zaima Azira Zainal Abidin; Hamid Ghazali; Azlina Abd Rahman; Özacar, Mahmut (ELSEVIER SCIENCE BV, 2018)

Conclusions: The present findings are first of its class that validates a considerable connection of DEFB1 and TCF7L2 gene polymorphisms with nephrolithiasis and could probably act as indicators to estimate the risk ...
Investigation of antibacterial properties of novel papain immobilized on tannic acid modified Ag/CuFe2O4 magnetic nanoparticles

Atacan, Keziban; Munteha Ozacar; Özacar, Mahmut (ELSEVIER SCIENCE BV, 2018)

The non-toxic CuFe2O4 magnetic nanoparticles have been solvothermally synthesized, characterized and used as an efficient magnetic precursor for papain immobilization and then investigated antibacterial properties of them. ...
Investigation of manganese(II)-insulin complexes using electrospray ionization mass spectrometry

Gülfen, Mustafa; Özdemir, Abdil; Jung-Lee Lin; Chung-Hsuan Chen (ELSEVIER SCIENCE BV, 2018)

Manganese is a trace element in human nutrition. It is involved in many enzymes, proteins and biological activities. Mn(II) ion has the capable of binding to protein or peptides. Insulin is a blood glucose-lowering peptide ...
Lipase-based on starch material as a development matrix with magnetite cross-linked enzyme aggregates and its application

Atheer Awad Mehde; Wesen Adel Mehdi; Severgün, Olcay; Soner Cakar; Özacar, Mahmut (ELSEVIER SCIENCE BV, 2018)

The Fe3O4 magnetic nanoparticles were prepared by precipitating ferrous ion (Fe2+) and ferric ion (Fe3+) in alkaline solution. The Fe3O4 magnetic nanoparticles were modified by tannic acid. After functionalization process, ...
Mechanical properties and morphology of nylon-6 hybrid composites

Ünal, Hüseyin; Mimaroğlu, Abdullah; Alkan, Murat (WILEY, 2004)

In this investigation, the influence of filler type and filler content on the mechanical properties of nylon-6 is investigated. The mineral fillers were selected on the basis of their shape and size: flake-like kaolin and ...
Metal ion sensing functional mono and double-decker lanthanide phthalocyanines: Synthesis, characterization and electrical properties

Kandaz, Mehmet; Bilgiçli, Ahmet Turgut (ELSEVIER SCIENCE SA, 2010)

We report, in this study, the preparation, physical characterization metal ion sensing properties of peripherally functionalized ionophore ligand, 4,5-bis(6-hydroxyhexylthio)-1,2-dicyanobenzene (1) and its mono ...
Microwave-assisted synthesis, electrochemistry and spectroelectrochemistry of amphiphilic phthalocyanines

Güzel, Emre; Atif Koca; Ahmet Gul; Makbule Burkut Kocak (ELSEVIER SCIENCE SA, 2015)

Novel hexadeca-substituted metallophthalocyanines (M = Cu, Ni, In) carrying eight hexyloxy groups on non-peripheral positions together with four chloro and four p-sulphonylphenoxy groups on peripheral positions have been ...
New alkaline media-soluble functional zinc(II) phthalocyanines bearing poly (hydroxylmethyl)iminomethane Schiff base complexes in catalytic bleaching

Pinar Sen; Ertug Yildirim; Yıldız, Salih Zeki (ELSEVIER SCIENCE SA, 2016)

This comparative study is based on the preparation of Bis[bis(tris(hydroxymethl)iminomethane-phenoxy)manganese(III)]phthalocyaninato zinc(II) (3) and Bis[bis(tris(hydroxymethyl)iminomethane-phenoxy) cobalt(III)] phthalocyaninato ...