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30 Jun 2008

Volume 92, Issue 26, Articles (26xxxx)

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Appl. Phys. Lett. 92, 264101 (2008); http://dx.doi.org/10.1063/1.2951485 (3 pages)

Wei Xiang Jiang, Tie Jun Cui, Qiang Cheng, Jessie Yao Chin, Xin Mi Yang, Ruopeng Liu, and David R. Smith
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Sol-gel derived nanostructured cerium oxide film for glucose sensor

Anees A. Ansari, Pratima R. Solanki, and B. D. Malhotra

Appl. Phys. Lett. 92, 263901 (2008); http://dx.doi.org/10.1063/1.2953686 (3 pages) | Cited 26 times

Online Publication Date: 1 July 2008

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Sol-gel derived nanostructured cerium oxide (CeO2) film deposited on gold (Au) electrode has been utilized for physisorption of glucose oxidase (GOx). X-ray diffraction, atomic force microscopy, UV-visible spectroscopy, and electrochemical techniques have been used to characterize sol-gel derived CeO2/Au electrode and GOx/CeO2/Au bioelectrode. The response characteristics of the glucose bioelectrode (GOx/CeO2/Au) indicate linearity, detection limit and shelf-life as 50–400 mg/dL, 12.0 μM, and 12 weeks, respectively. The value of apparent Michaelis–Menten constant (Km) of GOx/CeO2/Au bioelectrode has been found to be 13.55 μM.
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87.85.fk Biosensors
87.85.Rs Nanotechnologies-applications
87.80.Kc Electrochemical techniques
82.45.Fk Electrodes
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