Yazar "Ayhan, Hakan" için listeleme
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Carrier free cross-linked peroxidase aggregates: synthesis and characterization
Topçular, Ceren; Ayhan, Hakan (2008)In this study, cross-linked Horseradish Peroxidase (HRP) aggregates were prepared. Bovin Serum Albumin (BSA), a proteic feeder, and glutaraldehyde, a bifunctional reactive, a crosslinker agent has also been used. The initial ... -
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 ... -
Design and construction of uniform glow discharge plasma system operating under atmospheric condition
Kocum, C.; Ayhan, Hakan (Amer Inst Physics, 2007)The design of a uniform glow discharge plasma system operating without vacuum is presented. A full-bridge switching circuit was used to switch the transformers. The primary windings of transformers were connected in parallel, ... -
Effects of atmospheric plasma on the printability of wool fabrics
Özdoğan, Esen; Demir, Aslı; Karahan, H. Aylin; Ayhan, Hakan; Seventekin, Necdet (Ege Universitesi, 2009)This study is about environmentally safe pre-treatment for wool fabrics to improve their printability with acid dyes. Knitted wool fabrics treated with argon and air atmospheric plasma Were evaluated ill terms of printability. ... -
Effects of atmospheric plasma treatment on the dyeability of cotton fabrics by acid dyes
Karahan Toprakçı, Hatice Aylin; Özdoğan, Esen; Demir, Aslı; Ayhan, Hakan; Seventekin, Necdet (Blackwell Publishing, 2008)Cotton fabrics were treated with air and argon atmospheric plasma for surface activation. Activated surfaces were grafted with two different amine compounds: ethylenediamine and triethylenetetramine. Pretreated cotton was ... -
Effects of Atmospheric Pressure Plasma Treatments on Certain Properties of Cotton Fabrics
Karahan, Hatice Aylin; Özdoğan, E; Demir, Aslı; Ayhan, Hakan; Seventekin, N (Inst Chemical Fibres, 2009)In this study, air and argon atmospheric plasma were used for modifying some properties of bleached plain cotton fabrics. Certain physical properties such as pilling, thermal resistance, thermal conductivity, water vapour ... -
Effects of Atmospheric Pressure Plasma Treatments on Some Physical Properties of Wool Fibers
Karahan, Hatice Aylin; Ozdogan, Esen; Demir, Asli; Kocum, Ismail Cengiz; Oktem, Tuelin; Ayhan, Hakan (Sage Publications Ltd, 2009)Knitted wool fabrics were treated with argon and air atmospheric plasma. Pilling, bursting strength, thermal resistance, thermal conductivity, air permeability, water vapor permeability and friction properties were ... -
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 ... -
Improvement surface properties of polypropylene and polyester fabrics by glow discharge plasma system under atmospheric condition
Yaman, Necla; Özdoğan, Esen; Kocum, I. Cengiz; Ayhan, Hakan; Öktem, Tülin; Seventekin, Necdet (Ege Univ, 2009)In order to raise wettability and to improve soil release of polyester (PES) and polypropylene (PP) woven fabrics, atmospheric pressure plasma were applied. In this study, argon and air plasma were used for modification ... -
Investigation of inflammatory response at blood-poly (2-methoxyethyl acrylate) (PMEA) interface in vivo via scanning tunneling microscope
Kocakulak, Mustafa; Kocum, I. Cengiz; Ayhan, Hakan (Sage Publications Ltd, 2012)The effects of an amphiphilic polymer coating of poly(2-methoxyethyl acrylate) (PMEA) on immunoglobulin adsorption and leukocyte adhesion were investigated. Forty patients were operated on using noncoated and PMEA-coated ... -
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 ... -
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 ... -
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 ... -
Plasma treatment of polypropylene fabric for improved dyeability with soluble textile dyestuff
Yaman, Necla; Özdoğan, Esen; Seventekin, Necdet; Ayhan, Hakan (Elsevier, 2009)The impact of plasma treatment parameters on the surface morphology, physical-chemical, and dyeing properties of polypropylene (PP) using anionic and cationic dyestuffs were investigated in this study. Argon plasma treatment ...
