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Cholesterol oxidase (ChOx) physisorbed onto NiO nanoparticles (nNiO, 22 nm)— chitosan (CHIT) film prepared using coprecipitation method has been characterized using x-ray diffraction, Fourier transform infrared, scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy techniques. The results of electrochemical response studies conducted on ChOx/nan-NiO-CHIT/ITO bioelectrode show linearity of 10–400 mg/dl, detection limit of 43.4 mg/dl, sensitivity of
Published in:
Applied Physics Letters
(Volume:98
,
Issue:
12
)
Date of Publication: Mar 2011