Browsing by Author "Erdönmez, Demet"
Now showing items 1-20 of 23
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Antibacterial efficacy of copper-added chitosan nanoparticles: a confocal laser scanning microscopy analysis
Keskin, N.B.; Aydın, Z. U.; Uslu, G.; Özyürek, T.; Erdönmez, Demet; Gündoğar, M. Gündoğar (Springer Japan, 2021)The aim of this study was to evaluate the antibacterial efficacy of copper added chitosan nanoparticles (CU-CNPs) as an irrigation solution with different irrigants in terms of eliminating Enterococcus Faecalis (E. faecalis) ... -
Assessment of toxicity and oxidative DNA damage of sodium hypochlorite, chitosan and propolis on fibroblast cells
Uğur Aydın, Zeliha; Akpınar, Kerem Engin; Hepokur, Ceylan; Erdönmez, Demet (Sociedade Brasileira De Pesquisa Odontologica, 2018)The objective of this study was to evaluate and compare the cytotoxicity and genotoxicity on human fibroblast cell lines of sodium hypochlorite (NaOCl), chitosan and propolis as root canal irrigating solutions. Human ... -
Biological, mechanical, optical and physicochemical properties of natural chitin films obtained from the dorsal pronotum and the wing of cockroach
Kaya, Murat; Sargın, İdris; Sabeckis, Ignas; Noreikaite, Deimante; Erdönmez, Demet; Salaberria, Asier Martinez; Labidi, Jalel; Baublys, Vykintas; Tubelytė, Vaida (Elsevier Ltd., 2017)In previous studies, chitin-based films were produced from chitin nanofibers in dust form and fully characterized. However, chitin films naturally present.in many organisms have not been isolated and characterized. Herein, ... -
Cholesterol imprinted composite membranes for selective cholesterol recognition from intestinal mimicking solution
Odabaşı, Mehmet; Uzun, Lokman; Baydemir, Gözde; Aksoy, Neşe Hayat; Acet, Ömür; Erdönmez, Demet (Elsevier, 2018)Molecularly imprinted polymers which have been extensively investigated as selective adsorbents were constructed using a template molecule during the polymerization to gain template-specific cavities. In this study, we ... -
Co-evaluation of interaction parameters of genomic and plasmid DNA for a new chromatographic medium
Önal, Burcu; Acet, Ömür; Sanz, Raúl; Sanz-Pérez, Eloy S.; Erdönmez, Demet; Odabaşı, Mehmet (Elsevier B.V., 2019)Preparation of new sorbents specific to DNA has a great significance in many biomedical fields. This study reports a new sorbent with high surface area and porosity to immobilize nucleic acids having both high molecular ... -
Comparative study of inhibitory potential of dietary phytochemicals against quorum sensing activity of and biofilm formation by chromobacterium violaceum 12472, and swimming and swarming behaviour of pseudomonas aeruginosa PAO1
Bali, Elif Burcu; Türkmen, Kübra Erkan; Erdönmez, Demet; Sağlam, Necdet (Faculty Food Technology Biotechnology, 2019)Quorum sensing (QS) and biofilm formation are important mechanisms related to antibiotic resistance of many pathogens. Alternative treatments are needed to prevent recurrent or chronic infections caused by multi-resistant ... -
Conversion of waste parasitic insect (Hylobius abietis L.) into antioxidative, antimicrobial and biodegradable films
Kaya, Murat; Sargın, İdris; Mulercikas, Povilas; Labidi, Jalel; Salaberria, Asier Martinez; Çakmak, Yavuz Selim; Kazlauskaite, Sonata; Erdönmez, Demet; Baublys, Vykintas (Tech Science Press, 2019)Hylobius abietis is a plant parasitic insect belonging to the order Coleoptera and which causes severe damages to coniferous forests in Northern and Eastern Europe. This current study is aimed to provide a new viewpoint ... -
Detailed adsorption mechanism of plasmid DNA by newly isolated cellulose from waste flower spikes of Thypa latifolia using quantum chemical calculations
Mujtaba, Muhammad; Kaya, Murat; Akyüz, Lalehan; Erdönmez, Demet; Akyüz, Bahar; Sargın, İdris (Elsevıer Scıence Bv, 2017)Current study was designed to use the newly obtained cellulose from waste flower spikes of Thypa latifolia plant for plasmid DNA adsorption. Cellulose was isolated according to a previously described method including acid ... -
Determination of some adsorption and kinetic parameters of alpha-amylase onto Cu+2-PHEMA beads embedded column
Acet, Ömür; Aksoy, Neşe Hayat; Erdönmez, Demet; Odabaşı, Mehmet (Taylor & Francis Ltd, 2018)In order to investigate the biocatalytic properties of alpha-amylase on a composite cryogel matrix with immobilized metal affinity chromatography, Cu+2-attached poly(2-hydroxyethyl methacrylate) (Cu+2-PHEMA) beads, (2 mu ... -
DNA interaction, antitumor and antimicrobial activities of three-dimensional chitosan ring produced from the body segments of a diplopod
Kaya, Murat; Akyüz, Bahar; Bulut, Esra; Sargın, İdris; Tan, Gamze; Erdönmez, Demet; Maheta, Mansi; Satkauskas, Saulius (Elsevıer Scı Ltd, 2016)Commercially available chitins and the chitin isolated from mushrooms, insect cuticles, shells of shrimp, crab and crayfish reported in the literature are in forms of powder, flake or granule. Three-dimensional chitins ... -
Efficacy of antimicrobial photodynamic therapy administered using methylene blue, toluidine blue and tetra 2-mercaptopyridine substituted zinc phthalocyanine in root canals contaminated with Enterococcusaecalis
Er Karaoğlu, Gamze; Uğur Aydın, Zeliha; Erdönmez, Demet; Göl, Cem; Durmuş, Mahmut (Elsevier B.V., 2020)Background: Traditional chemomechanical treatment procedures are an indispensable part of endodontic treatment, however, additional treatment approaches such as antimicrobial photodynamic therapy (aPDT) may also be recommended ... -
Efficacy of different irrigation activation systems on bacterial extrusion
Uğur Aydın, Zeliha; Erdönmez, Demet; Ateş, Melis Oya; Doğan, Tülin (Wiley-Blackwell Publishing Asia, 2023)The purpose of this study was to evaluate the quantity of extruded bacteria following with EndoVac, EDDY, EndoActivator (EA) and standard needle irrigation (SNI). Ninety teeth with a single root and canal were included in ... -
Gıda fitokimyasallarının periodontal patojenlere karşı in vitro antimikrobiyal potansiyellerinin değerlendirilmesi
Bu çalışmada, Porphyromonas gingivalis ATCC 33277, Prevotella intermedia ATCC 25611 ve Aggregatibacter actinomycetemcomitans ATCC 43718 periodontal patojenlerine karşı gıdalarda bulunan fitokimyasallardan kuersetin, kurkumin, ... -
Microbial biofilm activity and physicochemical characterization of biodegradable and edible cups obtained from abdominal exoskeleton of an insect
Kaya, Murat; Sargın, İdris; Erdönmez, Demet (Elsevier Ltd., 2016)A contemporary focus in food industry is the use of edible bio-based products with properties such as antimicrobial and biodegradable to replace the synthetic harmful petroleum-based polymers. Among the natural polysaccharides, ... -
N-acyl homoserine lactone molecules assisted quorum sensing: effects consequences and monitoring of bacteria talking in real life
Acet, Ömür; Erdönmez, Demet; Önal Acet, Burcu; Odabaşı, Mehmet (Springer Science and Business Media Deutschland GmbH, 2021)Bacteria utilize small signal molecules to monitor population densities. Bacteria arrange gene regulation in a method called Quorum Sensing (QS). The most widespread signalling molecules are N-Acyl Homoserine Lactones ... -
A new approach for quorum sensing system in several halophilic bacteria isolated from Salt Lake in Central Anatolia
Erdönmez, Demet; Erkan Türkmen, Kübra; Aksöz, Nilüfer (Hacettepe Üniversitesi, 2017)Quorum sensing (qs) is the system that microorganisms use to improve common behavior with another population member in their environment. Salt Lake in Turkey that is considered as an extreme environment due to its salt ... -
O-carboxymethyl chitosan Schiff base complexes as affinity ligands for immobilized metal-ion affinity chromatography of lysozyme
Acet, Ömür; Baran, Talat; Erdönmez, Demet; Aksoy, Neşe Hayat; Alacabey, İhsan; Menteş, Ayfer; Odabaşı, Mehmet (ELSEVIER SCIENCE BV, 2018)We synthesized Ni2+-attached O-Carboxymethyl chitosan Schiff base complexes embedded composite cryogels (Ni2+-O-CMCS-CCs) by means of polymerization of gel-forming precursors at subzero temperatures. Prepared affinity ...
