Screen printed recessed microelectrode arrays

The construction and characterisation of screen printed recessed microelectrode arrays are reported. This screen printing approach results in the fabrication of shallow recessed microelectrode arrays which are characterised by microscopy and cyclic voltammetry. The analytical utility of the shallow recessed microelectrode arrays is demonstrated with the cathodic stripping of manganese (II) allowing nanomolar levels to be readily detected exhibiting a superior performance over conventional carbon based electrodes. The limitations of using screen printing technology to fabricate microelectrode arrays are also discussed. (C) 2009 Elsevier B.V. All rights reserved.