Abstract
Glucose sensor based on ITO/ZnO NRs/GOx/nafion is fabricated and
tested under different glucose concentrations. Hydrothermal growth method along
with sol-gel technique is used to grow high quality ZnO nanorods that have
well-alignment and high density with an acceptable aspect ratio. The as-grown of
ZnO nanorods are used to fabricate a working electrode that can be used for
glucose detection in blood after a modification process with GOx and
nafion membrane. Annealing at 110 °C helped in improves the
crystallinity of the seed layer and as a result, a high density and well
alignment as-grown ZnO nanorods were obtained. High sensitivity and short
response time were obtained from the fabricated device with an acceptable lower
limit of detection.