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Found: 4 Piece 0.001 sn
Publication year : 2019 ✕Researcher : Nahit AKTAŞ ✕
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Prof. Dr. Nahit AKTAŞMühendislik Fakültesi
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Preparation of molecularly imprinted PDMS elastomer for selective detection of folic acid in orange juice

Nahit AKTAŞ

Herein, it is reported an effective method to prepare novel molecularly imprinted polymers (MIP) on poly(dimethylsiloxane) (PDMS) elastomer via a combination of non-covalent imprinting approach and surface initiated reversible addition fragmentation chain transfer (SI-RAFT) polymerization for sensitive and selective detection of folic acid (FA). For this purpose, 2-(2-Methoxyethoxy) ethyl methacrylate (MEOMA), ethylene glycol dimethacrylate (EGDMA), azobisisobutyronitrile (AIBN), FA and dimethylsulfoxide (DMSO) were used as functional monomer, cross-linker, initiator, template molecule, and po ...More

Article 2019 Mühendislik Fakültesi Applied Surface Science471 ( 31 ) 123 Views
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Development of Nonenzymatic Benzoic Acid Detection on PdSn/GCE/Vulcan XC‐72R Prepared via Polyol Method

Nahit AKTAŞ

In this study a PdSn based sensor was developed for the determination of benzoic acid (BA) in foods. A carbon (Vulcan XC-72R) supported PdSn catalyst was prepared via polyol method and its surface electronic and chemical properties were investigated by advanced surface analytical techniques such as scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD), X-ray Photoelectron Spectroscopy (XPS), temperature-programmed reduction with H-2 (TPR-H-2) and transmission electron microscopy (TEM). Electrochemical measurements were performed by employing cyclic voltammetry (CV) and diffe ...More

Article 2019 Mühendislik Fakültesi Electroanalysis31 ( 6 ) 134 Views
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Urea Uptake and Release by Novel Macrogels from Dimethylacrylamide

Nahit AKTAŞ

A novel macrogels poly(N,N-Dimethylacrylamide) (p(DMAAm)) and its derivatives were synthesized from DMAAm for use in urea uptake and release. p(DMAAm) surface was modified by NaOH and HCl to obtain p(DMAAm)/NaOH and p(DMAAm)/HCl, which are negatively and positively charged, respectively. The dynamic swelling behaviors, water retention and pH sensitivities of the macrogels were studied. It was found that all macrogels exhibited the equilibrium swelling ratio (SR) in the range 1068-1451%. Swelling kinetics showed that the macrogels possessed Fickian diffusion behavior while the diffusion coeffic ...More

Article 2019 Mühendislik Fakültesi Communications in Soil Science and Plant Analysis50 ( 18 ) 57 Views
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3-Acrylamidopropyl-trimethylammoniumchloride cationic hydrogel modified graphite electrode and its superior sensitivity to hydrogen peroxide

Nahit AKTAŞ

A highly sensitive hydrogen peroxide (H2O2) sensor is fabricated by the synthesized 3-Acrylamidopropyl-trimethylammoniumchloride (p(APTMACl)) hydrogel to covered of pen- graphite (PG) electrodes. (p(APTMACl))-PG electrode is characterized using scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA). The electrochemical properties of these sensors are investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The CV behavior of (p(APTMACl))-PG electrode is inve ...More

Article 2019 Mühendislik Fakültesi Fullerenes, Nanotubes and Carbon Nanostructures27 ( 9 ) 122 Views
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