Abstract:
Amperometric sensing measurements of glucose were
performed using n-Cu2O nano-cubic films fabricated on Ti
using a surfactant free template aided electrodeposition
method. The electrochemical performance of these films in
the presence of aqueous glucose was characterized by cyclic
voltammetry and chronoamperometry. Amperometric sensing
measurements of glucose for the nano-cubic Cu2O/Ti electrode
were significantly better than the microcrystalline counterpart
prepared under similar electrodeposition conditions without
the aid of a template. Measurements yielded a sensitivity of
28.4 0.2 mA mM 1 cm 2 at an applied potential of þ0.6 V
with a lower detection limit of 15.6mM and a linear range of
detection from 17 to 11,650 mM. The linear range is one of the
best ever reported, for a copper oxide-based amperometric
glucose sensing electrode. Films were characterized using
XRD and SEM.
