Yazar "Ciftci, Hakan" için listeleme
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Adsorption of Ag(I) ions from wastewaters using poly(2-aminothiazole): kinetic and isotherm studies
Biyikoglu, Mutluhan; Ciftci, Hakan (SPRINGER, 2020)In this study, 2-aminothiazole, (2AT), was polymerized with benzoyl peroxide in 1,4-dioxane solution, and adsorption efficiencies of poly(2-aminothiazole), P-2AT, for the Ag(I) ions to remove from the aqueous solutions ... -
Amperometric glucose sensor based on the glucose oxidase enzyme immobilized on graphite rod electrode modified with Fe3O4-CS-Au magnetic nanoparticles
Onay, Aykut; Dogan, Uzeyir; Ciftci, Hakan; Cetin, Demet; Suludere, Zekiye; Tamer, Ugur (Springer Heidelberg, 2018)In this report, an amperometric detection method for blood glucose level was developed benefiting from glucose oxidase (GO) enzyme immobilization on nanoparticle modified graphite rod (GR) electrode. Fe3O4-CS-Au magnetic ... -
Chemical synthesis and characterization of soluble conducting poly(2-aminothiazole)
Biyikoglu, Mutluhan; Ciftci, Hakan (Springer, 2013)Poly(2-aminothiazole), (P-2AT), was synthesized by chemical polymerization method using 2-aminothiazole as the monomer. Structural characterizations were carried out by Fourier transform infrared, nuclear magnetic resonance, ... -
Development of poly(3-aminophenylboronic acid) modified graphite rod electrode suitable for fluoride determination
Ciftci, Hakan; Oztekin, Yasemin; Tamer, Ugur; Ramanaviciene, Almira; Ramanavicius, Arunas (Elsevier Science Bv, 2014)Poly(3-aminophenylboronic acid), (PAPBA) film was formed on the graphite rod surface by potential cycling. The PAPBA-modified graphite rod (PAPBA/GR) electrode prepared in this way was used for potentiometric fluoride ... -
Efficient Removal of Acidic Dye Using Low-Cost Biocomposite Beads
Metin, Aysegul U.; Ciftci, Hakan; Alver, Erol (Amer Chemical Soc, 2013)The objective of this study is to prepare and characterize chitosan/zeolite biocomposite beads and utilize them as adsorbent for removal of anionic dye, Acid Black 194 (AB194). Characterization studies of biocomposite beads ... -
Electrochemical biosensor based on glucose oxidase encapsulated within enzymatically synthesized poly(1,10-phenanthroline-5,6-dione)
Ciftci, Hakan; Oztekin, Yasemin; Tamer, Ugur; Ramanaviciene, Almira; Ramanavicius, Arunas (Elsevier Science Bv, 2014)This study is focused on the investigation of electrocatalytic effect of glucose oxidase (GOx) immobilized on the graphite rod (GR) electrode. The enzyme modified electrode was prepared by encapsulation of immobilized GOx ... -
Electrochemical copper (II) sensor based on chitosan covered gold nanoparticles
Ciftci, Hakan; Tamer, Ugur; Metin, Aysegul U.; Alver, Erol; Kizir, Nevin (Springer, 2014)This study outlines a new sensing platform based on glassy carbon electrodes modified by gold nanoparticles (AuNPs) for the determination of heavy metal. A glassy carbon electrode was modified by chitosan stabilized AuNPs. ... -
Electrochemical determination of Cu(II) ions using glassy carbon electrode modified by some nanomaterials and 3-nitroaniline
Dedelaite, Lina; Kizilkaya, Selin; Incebay, Hilal; Ciftci, Hakan; Ersoz, Mustafa; Yazicigil, Zafer; Ramanavicius, Arunas (Elsevier Science Bv, 2015)The aim of this research was to investigate the effect of the several nanomaterials in electrochemical determination of Cu(II) ions. For this aim, firstly the deposition of graphene oxide (GO), graphene, magnetite (Fe3O4), ... -
Electrochemical determination of iodide by poly(3-aminophenylboronic acid) film electrode at moderately low pH ranges
Ciftci, Hakan; Tamer, Ugur (Elsevier, 2011)A new potentiometric sensor for the determination of iodide based on poly(3-aminophenylboronic acid) (PAPBA) film electrode was constructed. Poly(3-Aminophenylboronic acid) films were synthesized electrochemically on ... -
Electrochemical polymerization of 2-aminothiazole
Ciftci, Hakan; Testereci, Hasan Nur; Oktem, Zeki (Springer, 2011)Electrochemical polymerization of 2-aminothiazole (AT) was studied in acetonitrile with tetrabutylammonium tetrafluoroborate (TBAFB) as the supporting electrolyte via constant potential electrolysis (CPE). The redox behavior ... -
Fabrication and characterization of gold-nanoparticles/chitosan film: a scaffold for L929-fibroblasts
Turk, Mustafa; Tamer, Ugur; Alver, Erol; Ciftci, Hakan; Metin, Aysegul U.; Karahan, Siyami (Taylor & Francis Ltd, 2013)The objective of the present study was to fabricate a gold nanoparticle crosslinked chitosan (Ch/AuNPs) composite film simple and to evaluate its use as a carrier matrix for L929-fibroblasts. L929-fibroblasts were seeded ... -
Functional gold nanorod particles on conducting polymer poly(3-octylthiophene) as non-enzymatic glucose sensor
Ciftci, Hakan; Tamer, Ugur (Elsevier Science Bv, 2012)The immobilization of surface-functionalized self-assembled monolayer (SAM) gold nanoparticles onto poly(3-octylthiophene) (POT) was achieved by the cooperation of hydrophobic forces. SAMs were prepared by 11-mercaptound ... -
Glucose determination based on a two component self-assembled monolayer functionalized surfaceenhanced Raman spectroscopy (SERS) probe
Torul, Hilal; Ciftci, Hakan; Dudak, Fahriye Ceyda; Adiguzel, Yekbun; Kulah, Haluk; Boyaci, Ismail Hakki; Tamer, Ugur (Royal Soc Chemistry, 2014)In this report, we present a new detection method for blood glucose, using gold nanorod SERS, a surface enhanced Raman scattering probe embedded in two component self-assembled monolayers (SAMs). Gold nanorod particles and ... -
High-yield aqueous synthesis of multi-branched iron oxide core-gold shell nanoparticles: SERS substrate for immobilization and magnetic separation of bacteria
Tamer, Ugur; Onay, Aykut; Ciftci, Hakan; Bozkurt, Akif Goktug; Cetin, Demet; Suludere, Zekiye; Greneche, Jean-Marc (Springer, 2014)The high product yield of multi-branched core-shell Fe3-x O-4@Au magnetic nanoparticles was synthesized used as magnetic separation platform and surface-enhanced Raman scattering (SERS) substrates. The multi-branched ... -
INVESTIGATION THE PERFORMANCE OF CHITOSAN BASED COMPOSITE BEADS ON REMOVAL OF ANIONIC DYE (AY-204)
Alver, Erol; Metin, Aysegul Ulku; Ciftci, Hakan (Yildiz Technical Univ, 2015)The aim of this study is to investigate the utility of chitosan/zeolite composite beads as adsorbent for removal of anionic textile dye, Acid Yellow 204. It was investigated the influence of parameters such as pH, time, ... -
Multiwalled Carbon Nanotube-Chitosan Scaffold: Cytotoxic, Apoptotic and Necrotic Effects on Chondrocyte Cell Lines
Ilbasmis-Tamer, Sibel; Ciftci, Hakan; Turk, Mustafa; Degim, Tuncer; Tamer, Ugur (Bentham Science Publ Ltd, 2017)Background: Carbon nanotubes (CNTs) have been considered highly successful and proficient in terms of their mechanical, thermal and electrical functionalization and biocompatibility. In regards to their significant extent ... -
Nanoparticle embedded chitosan film for agglomeration free TEM images
Dogan, Uzeyir; Ciftci, Hakan; Cetin, Demet; Suludere, Zekiye; Tamer, Ugur (Wiley-Blackwell, 2017)Transmission electron microscopy (TEM) is a very useful and commonly used microscopy technique, used especially for the characterization of nanoparticles. However, the identification of the magnetic nanoparticle could be ... -
Non-enzymatic sensing of glucose using a glassy carbon electrode modified with gold nanoparticles coated with polyethyleneimine and 3-aminophenylboronic acid
Ciftci, Hakan; Alver, Erol; Celik, Filiz; Metin, Aysegul U.; Tamer, Ugur (Springer Wien, 2016)A non-enzymatic electrochemical method was developed for sensing glucose by using a glassy carbon electrode modified with 3-aminophenylboronic acid (APBA) immobilized on polyethyleneimine (PEI)-coated gold nanoparticles. ... -
One step effective removal of Congo Red in chitosan nanoparticles by encapsulation
Alver, Erol; Bulut, Mehmet; Metin, Aysegul Ulku; Ciftci, Hakan (Pergamon-Elsevier Science Ltd, 2017)Chitosan nanoparticles (CNPs) were prepared with ionotropic gelation between chitosan and tripolyphosphate for the removal of Congo Red. The production of chitosan nanoparticles and the dye removal process was carried out ... -
Polymers from renewable resources: synthesis and characterization of poly(2,5-dihydro-2,5-dimethoxy furan)
Ciftci, Hakan; Oktem, Zeki; Testereci, Hasan Nur (Scientific Technical Research Council Turkey-Tubitak, 2012)The cationic polymerization of cis, trans-2,5-dihydro-2,5-dimethoxy furan (DHMF) was studied in the presence of HClO4, in acetonitrile. Different reaction parameters were investigated such as initiator concentration and ...
