CELL RETAINER

原文（中国語）

A cell retainer has a measuring surface that includes a work region in which a plurality of working electrodes are arranged, a reference electrode arranged outward of the work region, a plurality of first regions provided between the work region and the reference electrode, and a second region arranged between each two of the first regions, the two being adjacent to each other in a radial direction. A contact angle in the first region is greater than a contact angle in the work region and a contact angle in the second region. Thus, any of the first regions arranged outward of the work region or the second region serves to restrict the spread of a cell suspension. Moreover, the first regions arranged in multiple tiers enable selection of a drop region and a drop area from a plurality of drop regions and a plurality of drop areas.