Yazar "Tamer, Ugur" için listeleme
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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 ... -
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 ... -
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 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 ... -
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 ... -
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. ... -
Silver nanoparticles: cytotoxic, apoptotic, and necrotic effects on MCF-7 cells
Ciftci, Hakan; Turk, Mustafa; Tamer, Ugur; Karahan, Siyami; Menemen, Yusuf (Tubitak Scientific & Technical Research Council Turkey, 2013)The present study was conducted to examine cytotoxic, apoptotic, and necrotic effects of silver nanoparticles (AgNPs) on MCF-7 cells. Colloidal AgNPs were fabricated in an alkaline pH environment via reduction of silver ...
