Research Topics
| Azmi TelefoncuSummaryAffiliation: Ege University Country: Turkey Publications
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Detail Information
Publications
Encapsulation of insulin in chitosan-coated alginate beads: oral therapeutic peptide deliverySecil Onal
Biochemistry Department, Faculty of Science, Ege University, Bornova Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 30:229-37. 2002..Consequently, it can be said that the system can be offered for oral delivery of the therapeutic peptide drug insulin...- Comparison of chitin and Amberlite IRA-938 for alpha-galactosidase immobilizationSecil Onal
Department of Biochemistry, Faculty of Science, Ege University, Bornova Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 31:19-33. 2003..Although the activity yield of immobilized enzymes were the same for both supports, the short storage stability of immobilized enzyme on Amberlite IRA-938 is currently a drawback to its applications... - Inhibition of alpha-glucosidase by aqueous extracts of some potent antidiabetic medicinal herbsSecil Onal
Biochemistry Department, Faculty of Science, Ege University, 35100, Bornova, Izmir, Turkey
Prep Biochem Biotechnol 35:29-36. 2005..Furthermore, subsequent separation of the active material from Myrtus communis by HPLC showed that only one fraction acted as an a-glucosidase inhibitor... - Preparation and properties of alpha-galactosidase chemically attached to activated chitinSecil Onal
Department of Biochemistry, Faculty of Science, Ege University, Bornova Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 31:339-55. 2003..The immobilization procedure on chitin was cheap and also easy to carry out, and the immobilized enzyme had good properties that the potential for practical application is considerable... - Immobilization of pancreatic lipase on chitin and chitosanAli Kılınç
Department of Biochemistry, Faculty of Science, Ege University, Bornova Izmir, Turkey
Prep Biochem Biotechnol 36:153-63. 2006..The immobilization procedure shows a great potential for commercial applications of the immobilized lipase, a relatively low cost commercial enzyme... - Maltose biosensing based on co-immobilization of alpha-glucosidase and pyranose oxidaseDilek Odaci
Ege University, Faculty of Science, Biochemistry Department, Bornova Izmir, Turkey
Bioelectrochemistry 79:108-13. 2010..As a result, it has been found that; complex matrix of natural beer samples had no influence on the biosensing response. Also the results were in good agreement with those obtained by spectrophotometric measurements... - A microbial biosensor based on bacterial cells immobilized on chitosan matrixDilek Odaci
Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova Izmir, Turkey
Bioelectrochemistry 75:77-82. 2009..160x+0.151 (R(2)=0.990) and y=1.261x+0.197 (R(2)=0.982), respectively. All other data were also given as comparison of two systems one with CNT-modified and CNT-free... - Biosensing approach for glutathione detection using glutathione reductase and sulfhydryl oxidase bienzymatic systemSuna Timur
Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova, Izmir, Turkiye
Talanta 74:1492-7. 2008..All data were given as a comparison of two systems: biosensor and diode array detector (DAD)... - Pseudomonas putida based amperometric biosensors for 2,4-D detectionDilek Odaci
Faculty of Science, Biochemistry Department, Ege University, Bornova Izmir, Turkiye
Prep Biochem Biotechnol 39:11-9. 2009..Finally, the biosensors were applied to 2,4-D determination in a real herbicide sample... - Acetylcholinesterase (AChE) electrodes based on gelatin and chitosan matrices for the pesticide detectionSuna Timur
Department of Biochemistry, Faculty of Science, Ege University, Bornova-Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 32:427-42. 2004..Moreover, as well as accuracy, the regeneration conditions by using pyridine-2-aldoximethiodide (PAM-2) as a reactivating agent for the inhibited electrodes were also investigated... - Effects of mediators on the laccase biosensor response in paracetamol detectionDilek Odaci
Biochemistry Department, Faculty of Science, Ege University, Bornova-Izmir, Turkey
Biotechnol Appl Biochem 45:23-8. 2006..A linear relationship between sensor responses and analyte concentrations was obtained over the concentration range 2.0-15.0 microM, whereas, in the presence of the mediator HBT, this range became 0.5-3.0 microM... - Immobilization of phospholipase A2 on porous glass and its application for lowering serum cholesterol concentrationMustafa Teke
Department of Biochemistry, Faculty of Science, Ege University, Bornova Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 31:467-78. 2003..The immobilized enzyme had good properties that potential for medical application is considerable. Its use in lowering plasma cholesterol concentrations in blood samples was also demonstrated... - Determination of phenolic acids using Trametes versicolor laccaseDilek Odaci
Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova Izmir, Turkey
Talanta 71:312-7. 2007..Both electrodes were used for determination of a class of phenolic acids, achieving a cheap and fast tool and an easy to be used procedure for screening real samples of human plasma... - Laccase biosensors based on mercury thin film electrodeUlkü Anik Kirgöz
Ege University, Faculty of Science, Chemistry Department, Bornova, Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 33:447-56. 2005..Mercury thin film was also formed onto the surface of screen printed graphite electrodes and applied for the catechol detection. The linearity was observed in concentration range between 2.5 x 10(-6)-3.0 x 10(-5)M... - An enzyme electrode based on lipoxygenase immobilized in gelatin for selective determination of essential fatty acidsSuna Timur
Department of Biochemistry, Faculty of Science, Ege University, Bornova Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 31:329-37. 2003..0. However, in phosphate buffer 0.2 M at pH 6.0 linearity is in the range of 7.5-22.5 microM of ALA concentration at 5 minutes response times. Moreover, maximum electrode response was found in borate buffer at pH 9.0 and 30 degrees C... - Modification of porcine pancreatic lipase with Z-prolineSerap Evran
Department of Biochemistry, Faculty of Science, Ege University, Izmir, Turkey
Prep Biochem Biotechnol 35:191-201. 2005..After the modification, porcine pancreatic lipase was found to have new physicochemical characteristics, such as optimum alkaline pH stability and thermal stability at elevated temperatures... - Immobilized jerusalem artichoke (Helianthus tuberosus) tissue electrode for phenol detectionDilek Odaci
Department of Biochemistry, Faculty of Science, Ege University, Bornova-Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 32:315-23. 2004..The reproducibility of the enzyme electrode was also tested by using standard phenol solutions (0.005 microM). The standard deviation (SD) and variation coefficient (cv) were calculated as +/- 1.4 x 10(-4) microM and 3.1%, respectively... - Shell-core imprinted polyacrylamide crosslinked chitosan for albumin removal from plasmaBurcu Okutucu
Biochemistry Department, Faculty of Science, Ege University, Bornova 35100, Izmir, Turkey
J Biomed Mater Res A 84:842-5. 2008..The easy preparation protocol of derivatised beads and good protein recognition properties make them attractive for biotechnologic approaches... - Noncovalently galactose imprinted polymer for the recognition of different saccharidesBurcu Okutucu
Ege University, Faculty of Science, Department of Biochemistry, 35100 Bornova Izmir, Turkey
Talanta 78:1190-3. 2009..The results showed that, the orientation of the functional groups was the dominating factor for the selectivity of galactose imprinted polymer. The dissociation constants of polymer were determined by Scatchard analysis... - Optimization of serotonin imprinted polymers and recognition study from platelet rich plasmaBurcu Okutucu
Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova Izmir, Turkey
Talanta 76:1153-8. 2008..95 micromoll(-1) and 19.129 micromolg(-1), respectively. The polymer was tested to evaluate serotonin from platelet rich plasma and 70% serotonin recovery was found... - Modification of lysozyme with oleoyl chloride for broadening the antimicrobial specificitySerap Evran
Faculty of Science, Biochemistry Department, Ege University, Izmir, Turkey
Prep Biochem Biotechnol 40:316-25. 2010..coli. It was also shown that oleoyl chloride with an MIC value of 10 mg/mL was effective against both E. coli and S. aureus... - Covalent attachment of oligonucleotides to cellulose acetate membranesBurcu Okutucu
Faculty of Science, Department of Biochemistry, Ege University, Bornova-Izmir, Turkey
Artif Cells Blood Substit Immobil Biotechnol 32:599-608. 2004..The effects of various parameters on the immobilization oligonucleotide were investigated... - Immobilization of lipases on different carriers and their use in synthesis of pentyl isovaleratesAyten Sagiroglu
Department of Chemistry, Faculty of Sciences and Letter, Trakya University, Edirne, Turkey
Prep Biochem Biotechnol 34:169-78. 2004..The immobilized lipases were found to be very effective in the esterification reaction. The lipases immobilized on Celite 545 exhibited better operational stabilities than that of immobilized on Amberlite IRA-938... - A bio-imprinted urease biosensor: Improved thermal and operational stabilitiesMustafa Teke
Mugla University, Science and Art Faculty, Chemistry Department, 48000 Mugla, Turkiye
Talanta 74:661-5. 2008..The aim of the study was to compare the two biosensors in terms of their repeatability, pH stability and thermal stability, and also, linear ranges of two biosensors were compared with each other... - Two biosensors for phenolic compounds based on mushroom (Agaricus bisporus) homogenate: comparison in terms of some important parameters of the biosensorsMustafa Teke
Faculty of Science and Arts, Chemistry Department, Mugla University, Mugla, Turkiye
Prep Biochem Biotechnol 38:51-60. 2008..The aim of the study was to compare the two biosensors in terms of their repeatability and thermal, pH, and operational stability; also, the linear ranges of the two biosensors were compared with each other... - Electrical wiring of Pseudomonas putida and Pseudomonas fluorescens with osmium redox polymersSuna Timur
Department of Analytical Chemistry, Lund University, P O Box 124, SE 221 00, Lund, Sweden
Bioelectrochemistry 71:38-45. 2007..The analytical characteristics of the microbial sensors were evaluated for determination of catechol, phenol and glucose as substrates in both batch analysis and flow analysis mode... - A sensitive determination of dopamine in the presence of ascorbic acid using a nafion-coated clinoptilolite-modified carbon paste electrodeSenol Alpat
Department of Chemistry Education, Dokuz Eylul University, Buca Izmir, Turkey
Anal Bioanal Chem 383:695-700. 2005..The sensor offers a good alternative to existing analytical methods for dopamine, permits a relatively short analysis time, and is simple, selective and inexpensive...