Kurum Yazarı "Anık, Ülkü" Kimya Bölümü Koleksiyonu İçin Listeleme
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Amino acid intercalated montmorillonite: electrochemical biosensing applications
Demir, Filiz; Demir, Bilal; Yalçınkaya, Esra E.; Çevik, Serdar; Demirkol, Dilek Odacı; Anık, Ülkü; Timur, Suna (Royal Soc Chemistry, 2014)The present work is the first that includes the use of glycine (Gly), lysine (Lys) and glutamic acid (Glu) modified clay mineral matrices in the biosensors. For this purpose, initially, Gly, Lys and Glu were intercalated ... -
Application of Centri-voltammetry to Cytosensors: Cyto-centrivoltammetry
Tepeli, Yudum; Barlas, Fırat Barış; Timur, Suna; Anık, Ülkü (Pergamon-Elsevier Science Ltd, 2016)In this work, a centri-voltammetric cytosensor suitable for the for detection of folate receptor positive cervical cancer (HeLa) cells was developed for the first time. In order to see the effect of centrifugation, developed ... -
Biocentri-voltammetry for the enzyme assay: a model study
Çevik, Serdar; Timur, Suna; Anık, Ülkü (Royal Soc Chemistry, 2012)This work constitutes the first biocentri-voltammetric application for acetylcholinesterase (AChE) activity assay. After the optimization of working conditions like reaction time, centrifugation speed and time and enzyme ... -
A biosensor based on graphite epoxy composite electrode for aspartame and ethanol detection
Anık, Ülkü; Odacı, Dilek; Timur, Suna; Merkoci, Arben; Alegret, Salvador; Besun, Nurgun; Telefoncu, Azmi (Elsevier Science Bv, 2006)A gelatin membrane with carboxyl esterase and alcohol oxidase was subsequently integrated onto the surface of a graphite epoxy composite electrode (GECE). The developed biosensors showed linearity in the range of 2.5-400 ... -
Bismuth film based electrochemical hydroxymethylfurfural sensor
Özyurt, Vasfiye Hazal; Avcı, Okan; Tepeli-Büyüksünetci, Yudum; Anık, Ülkü (SPRINGER, 2023)A simple and sensitive electrochemical sensor based on bismuth film that was coated onto a carbon paste electrode was prepared and used for hydroxymethylfurfural (HMF) detection. It was observed that bismuth film electrode ... -
Carboxylic acid functionalized multi-walled carbon nanotube assisted centri-voltammetry as a new approach for caffeine detection
Ören Varol, Tuğba; Anık, Ülkü (Royal Soc Chemistry, 2017)This study focuses on the applicability of centri-voltammetry by using carboxylic acid functionalized multi-walled carbon nanotubes (MWCNTs-COOH) as a carrier reagent for caffeine detection. The effects of experimental ... -
Centri-voltammetric detection of epinephrine
Bal Altuntaş, Derya; Ören, Tuğba; Anık, Ülkü (Royal Soc Chemistry, 2016)The present study demonstrates a novel approach that has been proposed for epinephrine detection by using centri-voltammetry. The principle of the method is based on the accumulation of an analyte, here epinephrine, onto ... -
Centri-Voltammetric GSH Detection with PDI-C4SH as a Carrier Material
Perk, Benay; Büyüksünetçi Tepeli, Yudum; Haklı, Özgül; Xue, Chenming; Li, Quan; Anık, Ülkü (John Wiley and Sons Inc, 2021)In this study, we developed a centri-voltammetric electrochemical sensor for glutathione (GSH) detection. For this purpose, N,N′-2-octyloxy-1-methyl-2-oxoethyl)-(-2,4-thiolbutyloxy)-1-methyl-2-oxoethyl)-3,4 : 9,10-peryle ... -
Combination of a poly(3,4-ethylene-dioxythiophene) electrode in the presence of sodium dodecyl sulfate with centri-voltammetry
Tepeli, Yudum; Aslan, Sema; Sezer, Esma; Anık, Ülkü (Royal Soc Chemistry, 2015)A poly(3,4-ethylene-dioxythiophene) (PEDOT) electrode was prepared by electropolymerization of 3,4-ethylene-dioxythiophene (EDOT) in the presence of sodium dodecyl sulfate (SDS). The electrode was combined with centri-voltammetry ... -
Copper based metal organic framework decorated with gold nanoparticles as a new electrochemical sensor material for the detection of L-Cysteine in milk samples
Perk, Benay; Tepeli-Büyüksünetci, Yudum; Anık, Ülkü (Springer, 2023)A facile electrochemical sensor based on carbon felt electrode (CFE) modified with gold nanoparticles decorated copper based metal organic framework (AuNPs@Cu-MOF) was achieved for the electrochemical sensing of L-Cysteine ... -
Development and application of a SARS-CoV-2 colorimetric biosensor based on the peroxidase-mimic activity of γ-Fe 2 O 3 nanoparticles
Tepeli Büyüksünetçi, Yudum; Çitil, Burak Ekrem; Tapan, Utku; Anık, Ülkü (Springer, 2021)A practical colorimetric assay was developed for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For this purpose, magnetic γ Fe2O3 nanoparticles were synthesized and used as a peroxidase-like ... -
Development of a microbial biosensor based on carbon nanotube (CNT) modified electrodes
Timur, Suna; Anık, Ülkü; Odacı, Dilek; Gorton, Lo (Elsevier Science Inc, 2007)Pseudomonas putida DSM 50026 cells were used as the biological component and the measurement was based on the respiratory activity of the cells estimated from electrochemical measurements. The cells were immobilised on ... -
Development of an Osmium Redox Polymer Mediated Bioanode and Examination of its Performance in Gluconobacter oxydans Based Microbial Fuel Cell
Aslan, Sema; Conghaile, Peter O.; Leech, Donal; Gorton, Lo; Timur, Suna; Anık, Ülkü (Wiley-V C H Verlag Gmbh, 2017)Gluconobacter oxydans (G. oxydans) cells together with an osmium redox polymer (ORP) [Osmium (2,2'-bipyridine) 2(poly-vinylimidazole) 10Cl] Cl were combined with a glassy carbon paste electrode (GCPE) to form a bioanode ... -
Double-walled carbon nanotube based carbon paste electrode as xanthine biosensor
Anık, Ülkü; Çevik, Serdar (Springer Wien, 2009)We describe the first usage of a double walled carbon nanotube (DWCNT) modified carbon paste electrode as biosensor transducer. Xanthine was chosen as a substrate for evaluation of the electrode performance. Proper amount ... -
Electro-Nano Diagnostic Platform Based on Antibody-Antigen Interaction: An Electrochemical Immunosensor for Influenza A Virus Detection
Tepeli Büyüksünetçi, Yudum; Anık, Ülkü (MDPI, 2023)H1N1 is a kind of influenza A virus that causes serious health issues throughout the world. Its symptoms are more serious than seasonal flu and can sometimes be lethal. For this reason, rapid, accurate, and effective ... -
Electro-nano Diagnostic Platforms for Simultaneous Detection of Multiple Cancer Biomarkers
Kalyoncu, Dorukhan; Tepeli, Yudum; Kırgöz, Umut Can; Buyraç, Arda; Anık, Ülkü (Wiley-V C H Verlag Gmbh, 2017)In this study, a bimetallic nanomaterial-based electrochemical immunosensor was developed for the detection of carcinoembryonic antigen (CEA) and vascular endothelial growth factor (VEGF) cancer biomarkers at the same time. ... -
Electrochemical detection of influenza virus H9N2 based on both immunomagnetic extraction and gold catalysis using an immobilization-free screen printed carbon microelectrode
Sayhi, Maher; Ouerghi, Oussama; Belgacem, Kamel; Arbi, Marwa; Tepeli, Yudum; Ghram, Abdeljalil; Diouani, Mohamed Fethi; Anık, Ülkü (Elsevier Advanced Technology, 2018)Influenza is a viral infectious disease considered as a source of many health problems and enormous socioeconomic disruptions. Conventional methods are inadequate for in-field detection of the virus and generally suffer ... -
Electrochemical Determination of Dopamine Using a Novel Perylenediimide-Derivative Modified Carbon Paste Electrode
Ören, Tuğba; Birel, Özgül; Anık, Ülkü (Taylor & Francis Inc, 2018)A novel perylenediimide derivative, N,N-bis(4-{2-[2-(2-methoxyethoxy ethoxy]ethoxy}phenyl)-3,4:9,10-perylene tetracarboxydiimide, was utilized for the modification of a carbon paste electrode to develop a practical and ... -
Electrochemical Determination of Hemoglobin by the İmmobilization of the Analyte into a Carbon Felt Electrode (CFE) Using Cyclic Voltammetry (CV)
Avcı, Okan; Tepeli Büyüksünetçi, Yudum; Anık, Ülkü (Taylor and Francis Ltd., 2022)A practical and sensitive electrochemical sensor for hemoglobin (Hb) detection was developed. The main electrochemical reaction was the reduction of Fe (III) in the Hb structure. For the construction of the sensor, Hb was ...