Glucose biosensing using glassy carbon electrode modified with polyhydroxy-C60, glucose oxidase and ionic-liquid.

نویسندگان

  • Tian Yang
  • Xiao-Lu Yang
  • Yu-Shuai Zhang
  • BaoLin Xiao
  • Jun Hong
چکیده

Direct electrochemistry of glucose oxidase (GOD) was achieved when an ionic liquid/GOD-Polyhydroxy-C60 functional membrane was confined on a glassy carbon electrode (GCE). The cyclic voltammograms (CVs) of the modified GCE showed a pair of redox peaks with a formal potential (E°') of - 329 ± 2 mV. The heterogeneous electron transfer constant (k(s)) was 1.43 s-1. The modified GCE response to glucose was linear in the range from 0.02 to 2.0 mM. The detection limit was 1 μM. The apparent Michaelis-Menten constant (K(m)(app)) was 1.45 mM.

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عنوان ژورنال:
  • Bio-medical materials and engineering

دوره 24 6  شماره 

صفحات  -

تاریخ انتشار 2014