Abstract
Nanoporous alumina template was fabricated in dilute oxalic acid solution using a two step anodization process at voltage range of ~34 V. This was used as a template to form nanopillar matrices of copper by metal evaporation and direct deposition. Heat treatment of the copper nanopillars resulted in copper oxide ordered nanostructures which were characterized using electron microscopy. When these nanostructures were used as an electrochemical sensor for quantitative analysis of glucose in aqueous solutions, the electrodes modified with nanopillars showed a high degree of sensitivity compared to flat electrodes.
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