Microhole Array Electrodes Based on Microporous Alumina Membranes.

摘要

A procedure for preparing microhole array electrodes is described. These electrodes are based on a microporous alumina filtration membrane. This membrane (Anopore) contains linear 200 nm diameter pores. These pores define the holes in the microhole array. The microelectrodes at the bottoms of the holes are formed by simply coating the back of the membrane with gold. This procedure yields an electrode with a high density of uniform microholes. Furthermore, this microhole array electrode combines very deep microholes with the smallest microhole diameters (200 nm) to be reported in the literature to date. Cyclic voltammetry was used to characterize these electrodes.