(IMAGE) Université de Genève Caption The device takes the form of a small box in which the reaction medium circulates between two electrodes producing the electric field. © Stefan Matile Credit © Stefan Matile Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.