Apparatus for measuring extracellular potential

摘要

A sensing element (1) for measuring extracellular potential including a substrate, a well (9) provided in a substrate, a guide section provided on the wall (10) of the well (9), and a detective electrode (8) formed at a lower surface of the substrate. The guide section is for guiding drug. The well is provided at the bottom with a depression (4), and a first throughhole (3) penetrating through the depression (4) and the lower surface of the substrate. The well (9) is for mixing a subject cell, a culture solution and the drug together. The above-configured sensing element (1) accurately measures a change generated by a subject cell. <IMAGE>