Yazar "Erim, F. Bedia" 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 ... -
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 ... -
Antioxidant and antimicrobial chitosan films enriched with aqueous sage and rosemary extracts as food coating materials: Characterization of the films and detection of rosmarinic acid release
Kahya, Nilay; Kestir, Sacide Melek; Öztürk, Seray; Yolaç,Alara; Torlak, Emrah; Kalaycıoğlu, Zeynep; Akın Evingür, Gülşen; Erim, F. Bedia (Elsevier, 2022)Chitosan films containing aqueous extracts of sage and rosemary were prepared as a potential food coating material with antioxidant and antibacterial properties. The effect of adding extracts at different concentrations ... -
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 ... -
Comparative physical, antioxidant, and antimicrobial properties of films prepared by dissolving chitosan in bioactive vinegar varieties
Adımcılar, Veselina; Kalaycıoğlu, Zeynep; Akın Evingür, Gülşen; Torlak, Emrah; Erim, F. Bedia (Elsevier, 2023)Solvent casting following the dissolution of chitosan in aqueous acetic acid is the most widely used method for preparing chitosan films. In this study, an economical and practical way is proposed to improve the physicochemical ... -
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 ... -
Gelation of PAAm-PVP composites: A fluorescence study
Evingür, Gülşen Akın; Kaygusuz, Hakan; Erim, F. Bedia; Pekcan, Önder (World Scientific Publ Co Pte Ltd, 2014)Hybrid hydrogels are a new class of composite materials. Polyacrylamide (PAAm) hydrogels are mainly produced by free radical crosslinking copolymerization (FCC) of AAm in the presence of N, N'-methylene bis (acrylamide) ... -
Monitoring the gelation of polyacrylamide-sodium alginate composite by fluorescence technique
Evingür, Gülşen Akın; Tezcan, Filiz; Erim, F. Bedia; Pekcan, Önder (Taylor & Francis Ltd, 2012)Polyacrylamide (PAAm)-sodium alginate (SA) composite was prepared with different amounts of SA varying in the range between 0.06% and 2% (w/v). The PAAm-SA composite was characterized by the steady-state fluorescence ... -
Surfactant and metal ion effects on the mechanical properties of alginate hydrogels
Kaygusuz, Hakan; Evingür, Gülşen Akın; Pekcan, Önder; Klitzing, von Regine; Erim, F. Bedia (Elsevier Science Bv, 2016)This paper addresses the controlled variation of the mechanical properties of alginate gel beads by changing the alginate concentration or by adding different surfactants or cross-linking cations. Alginate beads containing ...
