Each of the 8 wells has a total electrode area of 3.985mm2 located on inter-digitated fingers to provide measurements of cells. Each well has a substrate area of 0.8cm2 and a maximum volume of 600 μL. On average, with a confluent layer, approximately 4000 to 8000 cells will be measured by the electrodes. The 8W20idf PET arrays are designed to monitor larger numbers of cells, sampling over the entire bottom of the well. Because of the relatively high number of cells, impedance fluctuations due to micromotion are smoothed out and do not obscure subtle changes in impedance due to the experimental conditions. Applications include: • Cell Attachment and Spreading • Cell proliferation • Cytotoxicity
