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    First record of Coptotriche angusticollella (Duponchel, 1843) (Lepidoptera: Tischeriidae) on the oil-bearing rose in Turkey
    (Walter de Gruyter GmbH, 2018) Demirözer, O.; Uzun, A.; Erbaş, S.; Can, F.
    Coptotriche spp. are known to cause damage on plants of Rosaceae and Fagaceae. Coptotriche angusticollella (Duponchel, 1843) (Lepidoptera: Tischeriidae) was recorded for the first time infesting the oil-bearing rose, Rosa damascena, at the last half of May 2017 in Isparta, Turkey. It should not be ignored that C. angusticollella can be a potential risk posed to the oil-bearing rose crop. © 2018 A. Uzun, published by Sciendo.
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    Glucose Oxidase-polypyrrole Electrodes Synthesized in p-Toluenesulfonic Acid and Sodium p-Toluenesulfonate
    (Pleiades Publishing Inc, 2011) Ozyilmaz, G.; Ozyilmaz, A. T.; Can, F.
    Amperometric glucose biosensors have been developed based on entrapment on platinum (Pt) electrode using cyclic voltammetry technique in glucose oxidase (GOD) and pyrrole containing p-toluene-sulfonic acid (pTSA) or sodium p-toluenesulfonate (NapTS) as supporting electrolyte solutions. Both of electrolyte solutions were suitable media for the formation and deposition of polypyrrole-GOD (PPy-GOD) layers on Pt substrate. Pt/PPy-GOD electrodes brought about in different morphological properties as well as different electrochemical and biochemical response. The highest responses obtained in pTSA and NapTS electrolytes were observed at pH of 4.5 and 7.0 for Pt/PPy-GOD electrodes, respectively. While linearity was observed between 0.0-1.0 mM glucose substrate for both electrodes, I-max value of Pt/PPy-GOD(NapTS) electrode was approximately twice as high as that of Pt/PPy-GOD(pTSA) electrode as 25.4 and 14.2 mu A, respectively. Five commercial drinks were tested with enzyme electrodes and compared with results obtained spectrophotometrically using glucose kit. Results revealed that Pt/PPy-GODNapTS electrode exhibited better biosensor response.
  • [ N/A ]
    Öğe
    Glucose oxidase-polypyrrole electrodes synthesized in p-toluenesulfonic acid and sodium p-toluenesulfonate.
    (2011) Ozyilmaz, G.; Ozyilmaz, A.T.; Can, F.
    Amperometric glucose biosensors have been developed based on entrapment on platinum (Pt) electrode using cyclic voltammetry technique in glucose oxidase (GOD) and pyrrole containing p-toluenesulfonic acid (pTSA) or sodium p-toluenesulfonate (NapTS) as supporting electrolyte solutions. Both of electrolyte solutions were suitable media for the formation and deposition of polypyrrole-GOD (PPy-GOD) layers on Pt substrate. Pt/PPy-GOD electrodes brought about in different morphological properties as well as different electrochemical and biochemical response. The highest responses obtained in pTSA and NapTS electrolytes were observed at pH of 4.5 and 7.0 for Pt/PPy-GOD electrodes, respectively. While linearity was observed between 0.0-1.0 mM glucose substrate for both electrodes, I(max) value of Pt/PPy-GOD(NapTS) electrode was approximately twice as high as that of Pt/PPy-GOD(pTSA) electrode as 25.4 and 14.2 microA, respectively. Five commercial drinks were tested with enzyme electrodes and compared with results obtained spectrophotometrically using glucose kit. Results revealed that Pt/PPy-GOD(NapTS) electrode exhibited better biosensor response.