Yazar "Evingür, Gülşen Akın" için listeleme
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Adsorptive removal kinetics of anionic dye onto chitosan films doped with graphene oxide: An in situ fluorescence monitoring
Kahya, Nilay; Bener, Semira; Kaygusuz, Hakan; Evingür, Gülşen Akın; Erim, F. Bedia (Taylor & Francis Inc, 2018)The aqueous adsorption of a fluorescent dye (pyranine) onto crosslinked chitosan-graphene oxide composite films was studied. In situ fluorescence monitoring technique is introduced as easy and fast experimental technique ... -
Antibacterial nano cerium oxide/chitosan/cellulose acetate composite films as potential wound dressing
Kalaycıoglu, Zeynep; Kahya, Nilay; Adimcilar, Veselina; Kaygusuz, Hakan; Torlak, Emrah; Evingür, Gülşen Akın (Pergamon-Elsevier Science Ltd, 2020)Novel chitosan and cellulose acetate polymer composites with nanosized cerium oxide were prepared as potential wound dressing materials. Chitosan and cellulose acetate are natural polymer derivatives with biocompatible ... -
Antimicrobial and physical properties of chitosan films incorporated with turmeric extract
Kalaycıoğlu, Zeynep; Torlak, Emrah; Evingür, Gülşen Akın; Özen, İlhan; Erim, F. Bedia (Elsevier Science Bv, 2017)In this study, the effects of turmeric extract incorporation on the antibacterialand physical properties of the chitosan films were evaluated. Turmeric containing chitosan-based film was produced with casting procedure and ... -
Antimicrobial cerium ion-chitosan crosslinked alginate biopolymer films: A novel and potential wound dressing
Kaygusuz, Hakan; Torlak, Emrah; Evingür, Gülşen Akın; Özen, İlhan; Klitzing, von Regine; Erim, F. Bedia (Elsevier Science Bv, 2017)Wound dressings require good antiseptic properties, mechanical strength and, more trustably, natural material ingredients. Antimicrobial properties of cerium ions and chitosan are known and alginate based wound dressings ... -
Cation Effect on Slow Release from Alginate Beads: A Fluorescence Study
Kaygusuz, Hakan; Erim, F. Bedia; Pekcan, Önder; Evingür, Gülşen Akın (Springer/Plenum Publishers, 2014)In this study, spherical alginate beads containing pyranine (P-y) as a fluorescence probe were prepared by ionotropic gelation of a sodium alginate solution. The steady state fluorescence technique was used to study pyranine ... -
Drying of polyacrylamide-multiwalled carbon nanotube (MWNT) composites with various MWNTs contents: a fluorescence study
Evingür, Gülşen Akın; Pekcan, Önder (Walter De Gruyter Gmbh, 2013)We studied the drying of polyacrylamide (PAAm)-multiwalled carbon nanotube (MWNT) composites, prepared by free radical crosslinking copolymerization in water, with a steady state fluorescence technique. Composite gels were ... -
Effect of Calcium Ion Concentration on Small Molecule Desorption from Alginate Beads
Evingür, Gülşen Akın; Kaygusuz, Hakan; Erim, F. Bedia; Pekcan, Önder (Taylor & Francis Inc, 2014)Spherical alginate beads were prepared by ionotropic gelation of sodium alginate through the use of calcium ions. Pyranine (Py) was added to the alginate solution as a small molecule probe for fluorescence studies. Desorption ... -
Effect of Content and Temperature On the Phase Transitions of Polymer Composites Doped By Kappa Carrageenan and Alginate
Evingür, Gülşen Akın; Pekcan, Önder (Elsevier Academic Press Inc, 2016)[No Abstract Available] -
The effect of crosslinking to elasticity of cornea with various composite solutions
Evingür, Gülşen Akın; Acar, F. Gülay (Elsevier Sci Ltd, 2015)The elasticity of cornea was investigated with and without dextran content in the 0.1% Riboflavin solutions including salt and glucose, respectively. These five different solutions were studied for keratoconus treatment ... -
Effect of multiwalled carbon nanotube (MWNT) on the behavior of swelling of polyacrylamide-MWNT composites
Evingür, Gülşen Akın; Pekcan, Önder (Sage Publications Ltd, 2014)The purpose of this paper is to discuss the role of multiwalled carbon nanotube in the swelling of polyacrylamide-multiwalled carbon nanotube composites. Swelling experiments were performed in water at various temperatures ... -
The Effect of Pyranine and MoS2 Content on the Optical Properties of Polyacrylamide-MoS2 Composite Gels
Özuğur Uysal, Bengü; Osma, Büşra; Evingür, Gülşen Akın; Pekcan, Önder (Taylor and Francis Ltd., 2024)The most favorable members of the class of two-dimensional (2D) materials, molybdenum sulfide (MoS2), graphene, and tungsten disulfide (WS2) have become a thriving research frontier for many applications, ranging from ... -
Effect of temperature and graphene oxide on the swelling of PAAm-GO composite gels
Osma, Büşra; Evingür, Gülşen Akın; Pekcan, Önder (Avestia Publishing, 2019)Graphene oxide (GO) is a two dimensional carbon material with similar one-atom thickness, and is a light material having extremely high strength and thermal stability [1]. Thus, GO is an efficient filler for the enhancement ... -
Elastic percolation of swollen polyacrylamide (PAAm)-multiwall carbon nanotubes composite
Evingür, Gülşen Akın; Pekcan, Önder (Taylor & Francis Ltd, 2012)Polyacrylamide (PAAm)-multiwalled carbon nanotube (MWNT) composites were prepared via free radical cross-linking copolymerization with different amounts of MWNTs varying in the range between 0.1 and 50 wt%. The mechanical ... -
Elastic Properties of a Swollen PAAm-NIPA Copolymer with Various NIPA Contents
Evingür, Gülşen Akın; Pekcan, Önder (Taylor & Francis Inc, 2014)Copolymer based on cross-linked polyacrylamide (PAAm) having N-isopropylacrylamide (NIPA) was prepared and their elastic properties were studied as a function of NIPA contents. NIPA content dependency of the shear modulus, ... -
Elastic properties of a swollen polyacrylamide (PAAm) gel doped with various multiwalled carbon nanotube (MWNT) contents
Evingür, Gülşen Akın; Pekcan, Önder (Carl Hanser Verlag, 2017)The toughness UT and shear modulus S of polyacrylamide (PAAm) multiwalled carbon nanotube (MWNTs) composites were studied with various MWNT contents. These composites were prepared via free radical crosslinking copolymerization ... -
Elasticity Study of PAAm-kappa C Composite Prepared in Various kappa C Content and Measured at Several Temperatures
Evingür, Gülşen Akın; Pekcan, Önder (Polish Acad Sciences Inst Physics, 2015)Polyacrylamide (PAAm)-kappa carrageenan (kappa C) composite gels were prepared via free radical crosslinking copolymerization with various (w/v) percentages of kappa C in the range between 0.5 and 3 (w/v)% of kappa C . ... -
Electrical, mechanical, and optical changes in MWCNT-doped PMMA composite films
Mergen, Omer Bahadır; Arda, Ertan; Evingür, Gülşen Akın (Sage Publications Ltd, 2020)In this study, we report the preparation of poly (methyl methacrylate)/multi-walled carbon nanotube (MWCNT) composite thin films by simple and efficient solution mixing and ultrasonic method and the electrical, optical, ... -
Electrical, optical and mechanical properties of chitosan biocomposites
Mergen, Omer Bahadır; Arda, Ertan; Evingür, Gülşen Akın (Sage Publications Ltd, 2020)In this work, chitosan/graphene nanoplatelets (CS/GNP) and chitosan/multi-walled carbon nanotube (CS/MWCNT) biocomposite films were prepared using a simple, eco-friendly and low-cost method. The electrical, optical and ... -
Electrical, optical and mechanical properties of PS/GNP composite films
Arda, Ertan; Mergen, Ömer Bahadır; Evingür, Gülşen Akın (Taylor & Francis Ltd, 2018)In this study, the electrical, optical and mechanical properties of polystyrene (PS) thin films added graphene nanoplatelet (GNP) have been investigated. Surface conductivity (sigma), absorbance intensity (A) and tensile ... -
Electrical, optical, and mechanical percolations of multi-walled carbon nanotube and carbon mesoporous-doped polystyrene composites
Mergen, Omer Bahadır; Arda, Ertan; Evingür, Gülşen Akın (Sage Publications Ltd, 2020)In this study, we have investigated and compared electrical, optical, and mechanical properties of polystyrene thin films with added multi-walled carbon nanotube and carbon mesoporous. Surface conductivity (sigma), scattered ...
