Yazar "Ayhan, Fatma" için listeleme
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Chelating agent effect on the release of gentamicin from PEG-DA hydrogels
Sökmen, Nazlı; Bican, Ferah; Ayhan, Fatma; Ayhan, Hakan (2008)In this study, controlled drug release devices of poly(ethylene glycol-diacrylate) (PEG-DA) hydrogels were prepared by free radical UV polymerization. PEG-DAmacromere was cross-linked with different percentages of ethylene ... -
Cross-linked glucose oxidase aggregates: Synthesis and characterization
Sunulan çalışmanın amacı Aspergillus niger Glukoz Oksidaz enziminin taşıyıcısız immobilizasyonunu (çapraz bağlı enzim agregatları olarak) gerçekleştirmek, en uygun immobilizasyon koşullarını bulmak ve immobilize enzim ... -
Experimental design optimization and decolorization of an azo dye by cross-linked peroxidase aggregates
Akpolat, Oğuz; Ayhan, Fatma (Ege Universitesi, 2021)Synthetic textile azo-dyes are important water contaminants in industrial textile wastes and peroxidases have potential for textile-dye degradation. The optimization of enzyme activity as crosslinked enzyme aggregases ... -
Gentamicin release from photopolymerized PEG diacrylate and pHEMA hydrogel discs and their in vitro antimicrobial activities
Ayhan, Fatma; Oezkan, Semiha (Taylor & Francis Inc, 2007)Hydrogels based on poly(ethylene glycol)-diacrylate (PEG-DA) and 2-hydroxyethyl methacrylate (HEMA) were polymerized with cross-linking agent ethylene glycol diacrylate (EGDMA) under mild photoinitiating conditions. PEG-DA ... -
Glukoz oksidaz enzim agregatları kullanılarak ?-Dglukozun parçalanma kinetiğinin modellenmesi
Akpolat, Oğuz; Ayhan, Fatma; Ayhan, Hakan (2013)Amaç: Bu araştırmanın amacı glukoz oksidaz (GOD) enzimi ile hazırlanan agregat sistemlerinin glukozu indirgemesi sırasında oluşan tepkimenin kinetik değişmezlerinin zamana bağlı olarak ölçünen derişim değerlerini benzeştiren ... -
Gold nanoparticle synthesis and characterisation
Tabrizi, Amir; Ayhan, Fatma; Ayhan, Hakan (2009)The aim of this study is to synthesize and characterize gold nanoparticles. For this purpose, the reduction reaction between tetrachloroauric acid and sodium citrate was used. At the end of the reduction reaction, gold ... -
Highly biocompatible enzyme aggregates crosslinked by L-lysine
Ayhan, Hakan; Ayhan, Fatma; Gulsu, Aydan (Walter de Gruyter Gmbh, 2012)Aim: The purpose of the work is the use of L-Lysine amino acid cross-linker in the achievement of alternative and compatible enzyme aggregate. Cross-linked enzyme aggregates (CLEAs) were prepared from several enzymes ( ... -
Homocysteine-BSA - affinity based biosensor design (vol 39, pg 383, 2014)
Ayhan, Fatma; Kaya, Gizem; Ayhan, Hakan (Turkish Biochem Soc, 2014) -
Homosistein-BSA-afinite temelli biyosensor tasarımı
Ayhan, Fatma; Kaya, Gizem; Ayhan, Hakan (2014)Amaç: Çalışmada, Kuartz Kristal Mikrodenge (QCM) sistemi kullanılarak piezoelektrik esaslı Homosistein biyoafinite sensörü ile Homosisteinin tayini ve tekrar kullanılabilirliğinin tespiti amaçlanmıştır.Metod: Gümüş sensör ... -
Kontrollu ilaç salımı için fotoçapraz bağlı poli(etilen glikol) hidrojeller
Ayhan, Hakan; Ayhan, Fatma (2014)Amaç: Sunulan araştırma kapsamında; PEG bazlı hidrojellerin sentezi, elde edilen hidrojellerin karakterizasyonu ve bu hidrojellerin kontrollü ilaç salım sistemlerinde kullanımlarının incelenmesi amaçlanmıştır.Metod: Farklı ... -
Lıquıdambar Orıentalıs Mıll. Leaf Aqueous Extract for the Synthesıs of Sılver Nanopartıcles And Immobılızatıon on Textıle Fabrıcs for Bıomedıcal Applıcatıons
Bilgili, B.; Karademir, F.; Bozacı, E.; Özdoğan, E.; Ayhan, Fatma (2016)Gümüş nanoparçacıkların (AgNPler) biyosentezi farklı uygulamalarda kullanma potansiyeline sahiptir ve gümüş nanopartiküller güçlü antimikrobiyal aktiviteleri nedeniyle tekstil mamüllerine sıkça uygulanmaktadır. Bu yayında, ... -
Modelling of the beta-D-glucose destruction kinetics by using glucose oxidase enzyme aggregates
Akpolat, Oguz; Ayhan, Fatma; Ayhan, Hakan (Turkish Biochem Soc, 2013)Aim: The object of the study is calculation of the kinetic constants for the reduction reaction of glucose by glucose oxidase (GOD) aggregate systems by the mathematical model simulated the concentrations of the reactants ... -
The phenolic compounds from Hypericum perforatum and their antimicrobial activities
Çelen, Gönül; Özkan, Semiha; Ayhan, Fatma (2008)Hypericum perforatum (St. John& #8217; s wort) (H. perforatum) is a plant which has been used as a medicinal herb since ancient times and grow in Europe, West Asia and North Africa. In this work, the crude extracts of ... -
Photocrosslinked poly(ethylen glycol) hydrogels for controlled drug delivery
Ayhan, Hakan; Ayhan, Fatma (Walter de Gruyter Gmbh, 2014)Objective: In the work presented, synthesis of PEG based hydrogels, characterization of synthesized hydrogels and usage of these hydrogels in controlled drug release systems were studied. Methods: Synthesis of PEG based ... -
Photopolymerized poly(Ethylene glycol) diacrylate hydrogels for controlled release of ketoprofen
In this study, poly(ethylene glycol-diacrylate) (PEG-DA) hydrogels with two different concentrations, 30% and 50% w/w, were prepared by free radical polymerization method. Ethylene glycol dimethacrylate (EGDMA) and ... -
Preparation and characterization of ketoprofen loaded albumin microspheres
Gulsu, Aydan; Ayhan, Hakan; Ayhan, Fatma (Walter de Gruyter Gmbh, 2012)Aim: Albumin microspheres have found many applications in the diagnosis and treatment in recent years and more than 100 diagnostic agents and drugs have been incorporated into Albumin microspheres. The objective of this ... -
Quartz crystal piezo electrode surface modification for gold nano-particles immobilization
Ayhan, Fatma; Gülsu, Aydan; Ayhan, Hakan (2007)In this study silver electrode quartz crystal surfaces were cleaned and modified to immobilize gold nanoparticles. First, the crystal surfaces were cleaned and activated with sodium hydroxide, acetone and methanol. After ... -
Statistical analysis of blood cells and blood proteins behaviours contacted with PMEA-coated and uncoated oxygenators
Polimetoksietilen akrilat (PMEA) kaplı ve kapsız oyuk fiberlerin kan uyumluluğu multivariat istatistiksel yöntemler kullanılarak incelenmiştir. Hastalar iki gruba ayrılmıştır: biri PMEA kaplı diğeri de kapsız oksijeneratör ... -
Urease immobilized piezoelectric quartz crystal for urea conversion
In this study, the immobilization of the enzyme urease on the surface of the quartz crystal was reported. The layer growth on silver electrode resonator was monitored with QCM and the catalytic activity of the enzyme layer ... -
Water based PHEMA hydrogels for controlled drug delivery
Ayhan, Hakan; Ayhan, Fatma (Walter de Gruyter Gmbh, 2018)Objective: In the scope of presented work, synthesis of water based acrylate hydrogels, characterization, and their usage in controlled drug release systems were aimed to investigate. Methods: Synthesis of acrylate based ...
