Fabrication of physical or bio-/electro-chemical sensors at ultra-small scale, but with novel functionalities and improved performances will reach soon a serious limitation. Nanotechnology may overcome this restriction by providing access to a borderless range of nanostructures with intriguing features and numerous advantages. Nowadays, the true "nano-" art expresses the ability to easily tailor their physical properties to meet the device requirements. In this work we blended specific top-down patterning methods with adequate bottom-up electrochemical routes using nanoporous alumina...