Yazar "Teke, Mustafa" için PubMed İndeksli Yayınlar Koleksiyonu listeleme
-
A bio-imprinted urease biosensor: Improved thermal and operational stabilities
Teke, Mustafa; Sezginturk, Mustafa Kemal; Dinckaya, Erhan; Telefoncu, Azmi (Elsevier Science Bv, 2008)Despite the increasing number of applications of biosensors in many fields, the construction of a steady biosensor remains still challenging. The high stability of molecularly bio-imprinted enzymes for its substrate can ... -
A Biosensor Based on Bay Leaf (Laurus nobilis L.) Tissue Homogenate: Improvement of the Stability Characteristics by a Simple Bio-imprinted Technique
Teke, Mustafa; Sezginturk, Mustafa Kemal; Dinckaya, Erhan (Informa Healthcare, 2008)Although enzymes are effective biocatalysts that are widely used in biosensors, a major drawback that hampers many of these biotechnological applications of enzymes is their limited stability. Applications that use very ... -
A comparative study for lipase immobilization onto alginate based composite electrospun nanofibers with effective and enhanced stability
Doğaç, Yasemin İspirli; Deveci, Ilyas; Mercimek, Bedrettin; Teke, Mustafa (Elsevier, 2017)In this study, lipase was successfully immobilized on polyvinyl alcohol/alginate and polyethylene oxide/alginate nanofibers that were prepared by electrospinning. Results showed that nanofibers (especially polyvinyl ... -
DEVELOPMENT OF A NEW BIOSENSOR FOR DETERMINATION OF CATALASE ACTIVITY
Teke, Mustafa (Taylor & Francis Inc, 2014)Catalase is one of the major antioxidant enzymes that catalyzes the hydrolysis of H2O2. The aim of this study was to suggest a new method for the assay of catalase activity. For this purpose, an amperometric biosensor based ... -
IMMOBILIZATION OF BOVINE CATALASE ONTO MAGNETIC NANOPARTICLES
Dogac, Yasemin Ispirli; Teke, Mustafa (Taylor & Francis Inc, 2013)The scope of this study is to achieve carrier-bound immobilization of catalase onto magnetic particles (Fe3O4 and Fe2O3NiO2 center dot H2O) to specify the optimum conditions of immobilization. Removal of H2O2 and the ... -
Immobilization of pancreatic lipase on chitin and chitosan
Kılınç, Ali; Teke, Mustafa; Önal, Seçil; Telefoncu, Azmi (Taylor & Francis Inc, 2006)In this study, porcine pancreatic lipase (EC 3.1.1.3) was immobilized on chitin and chitosan by adsorption and subsequent crosslinking with glutaraldehyde, which was added before (conjugation) or after (crosslinking) washing ... -
Improving of Catalase Stability Properties by Encapsulation in Alginate/Fe3O4 Magnetic Composite Beads for Enzymatic Removal of H2O2
Doğaç, Yasemin İspirli; Çınar, Mürvet; Teke, Mustafa (Taylor & Francis Inc, 2015)The aim of this study was enhancing of stability properties of catalase enzyme by encapsulation in alginate/nanomagnetic beads. Amounts of carrier (10-100 mg) and enzyme concentrations (0.25-1.5 mg/mL) were analyzed to ... -
Selective extraction of iron(III) from aqueous nitrate solution in the presence of cobalt(II), copper(II) and nickel(II) ions using BiS(Delta(2)-2-imidazolinyl)-5,5 '-dioxime
Teke, Mustafa; Mercimek, Bedrettin; Özler, Mehmet Ali; Ayar, Ahmet (Japan Soc Analytical Chemistry, 2004)The feasibility of using bis(Delta(2)-2-imidazolinyl)-5,5'-dioxime (H2L) for the selective extraction of iron(III) from aqueous solutions was investigated by employing an solvent-extraction technique. The extraction of ... -
A selective molecularly imprinted polymer for immobilization of acetylcholinesterase (AChE): an active enzyme targeted and efficient method
Demirci, Gökhan; Doğac, Yasemin İspirli; Teke, Mustafa (Wiley-Blackwell, 2015)In the present study, we immobilized acetylcholinesterase (AChE) enzyme onto acetylcholine removed imprinted polymer and acetylcholine containing polymer. First, the polymers were produced with acetylcholine, substrate of ... -
Sulfite Determination by a Biosensor Based on Bay Leaf Tissue Homogenate: Very Simple and Economical Method
Teke, Mustafa; Sezginturk, Mustafa Kemal; Dinckaya, Erhan (Taylor & Francis Inc, 2009)Of all the food additives for which the FDA has received adverse reaction reports, the ones that most closely resemble true allergens are sulfur-based preservatives. Sulfites are used primarily as antioxidants to prevent ... -
Synthesis and Characterisation of Biocompatible Polymer-Conjugated Magnetic Beads for Enhancement Stability of Urease
Doğaç, Yasemin İspirli; Teke, Mustafa (Springer, 2016)We reported natural polymer-conjugated magnetic featured urease systems for removal of urea effectively. The optimum temperature (20-60 A degrees C), optimum pH (3.0-10.0), kinetic parameters, thermal stability (4-70 A ... -
Synthesis and Characterization of Chitosan/TiO2 Composite Beads for Improving Stability of Porcine Pancreatic Lipase
Deveci, İlyas; Doğac, Yasemin İspirli; Teke, Mustafa; Mercimek, Bedrettin (Humana Press Inc, 2015)The purpose of the present work is improving stability properties of porcine pancreatic lipase (triacylglycerol lipase, E.C.3.1.1.3) by immobilization on chitosan/TiO2 composite beads. The immobilization parameters were ... -
Synthesis and characterization of electrospun PVA/Zn2+ metal composite nanofibers for lipase immobilization with effective thermal, pH stabilities and reusability
Işık, Ceyhun; Arabacı, Gökmen; Dogaç, Yasemin İspirli; Deveci, İlyas; Teke, Mustafa (Elsevier Science Bv, 2019)Polyvinyl alcohol (PVA)/Zn2+ electrospun nanofibers that were a kind of polymer/ionic metal composite was successfully embedded in the hybrid fibers for the first time in the literature, due to chemical interactions between ... -
Two biosensors for phenolic compounds based on mushroom (Agaricus bisporus) homogenate: Comparison in terms of some important parameters of the biosensors
Teke, Mustafa; Sezgintuerk, M. Kemal; Dinckaya, Erhan; Telefoncu, Azmi (Taylor & Francis Inc, 2008)Interest in molecular imprinted polymer techniques has increased because they allows for the improvement of some stability characteristics of enzymes. The high stability of molecularly imprinted enzymes for a substrate can ... -
Urease immobilized electrospun PVA/chitosan nanofibers with improved stability and reusability characteristics: an application for removal of urea from artificial blood serum
Kutlu, Nur; Doğaç, Yasemin İspirli; Deveci, Ilyas; Teke, Mustafa (Taylor & Francis Inc, 2020)Electrospun polyvinyl alcohol (PVA)/Chitosan nanofibers were successfully prepared and were used as carriers for the first time in urease immobilization. Also, urease immobilized electrospun PVA/Chitosan nanofibers were ...