Manufacturing electrochemical platforms: Direct-write dispensing versus screen printing

We report the fabrication of electrochemical platforms using recently developed direct-write dispensing technology, which are compared directly with those produced with screen printing. The manufactured electrodes were examined with the outer-sphere electron transfer probe potassium ferrocyanide, and their structure and morphology were examined with SEM. The electrochemical platforms produced via the direct-write technology performed in a similar fashion with those from screen printing and exhibited excellent voltammetric reproducibility and electrode morphology, suggesting that the direct-write methodology can be used for the routine production of electrochemical platforms. This technology offers an alternative production method for the maskless production of electrochemical platforms which will find diverse applications in the field of electrochemistry. (C) 2008 Elsevier B.V. All rights reserved.