Compact System for Stimulation and Recording of Field Potentials from Cardiac Tissue Preparations

The recording of extracellular field potentials from cardiac tissues or cardiomyocytes can provide relevant information for the study of cardiovascular diseases and the effects of drugs. Cardiac field potentials are commonly acquired using commercial systems based on microelectrode arrays, which are expensive and lack flexibility, thus precluding a more extensive use in cardiac research. In this work, an easily configurable, open-source system is presented, which is based on a modular and flexible architecture. The proposed system offers a customizable and low-cost solution that could enable greater accessibility to electrophysiological studies of cardiac cells and tissues.