Sol-gel derived nanostructured cerium oxide film for glucose sensor | Zendy

Anees A. Ansari | Zendy; Pratima R. Solanki | Zendy; Bansi D. Malhotra | Zendy

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Sol-gel derived nanostructured cerium oxide film for glucose sensor

Author(s) -

Anees A. Ansari,

Pratima R. Solanki,

Bansi D. Malhotra

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2953686

Subject(s) - cerium oxide , glucose oxidase , cerium , materials science , detection limit , sol gel , analytical chemistry (journal) , physisorption , electrode , chemical engineering , amperometry , oxide , electrochemistry , nuclear chemistry , inorganic chemistry , nanotechnology , chemistry , biosensor , catalysis , metallurgy , chromatography , organic chemistry , engineering

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 50–400mg∕dL, 12.0μM, and 12weeks, respectively. The value of apparent Michaelis–Menten constant (Km) of GOx∕CeO2∕Au bioelectrode has been found to be 13.55μM.

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