The present invention provides a bio-electrode composition including: a resin containing a urethane bond in a main chain and a siloxane bond in a side chain; and an electro-conductive material, wherein the electro-conductive material is a polymer compound having one or more repeating units selected from fluorosulfonic acid salts shown by the following formulae (1)-1 and (1)-2, sulfonimide salts shown by the following formula (1)-3, and sulfonamide salts shown by the following formula (1)-4. This can form a living body contact layer for a bio-electrode that is excellent in electric conductivity and biocompatibility, light in weight, manufacturable at low cost, and free from large lowering of the electric conductivity even when it is wetted with water or dried. The present invention also provides a bio-electrode in which the living body contact layer is formed from the bio-electrode composition, and a method for manufacturing the bio-electrode.
本发明提供了一种
生物电极组合物,包括:主链中含有聚
氨酯键、侧链中含有
硅氧烷键的
树脂;以及导电材料,其中导电材料是具有一个或多个重复单元的聚合物化合物,这些重复单元选自下式(1)-1和(1)-2所示的
氟磺酸盐、下式(1)-3所示的磺
酰亚胺盐以及下式(1)-4所示的磺酰胺盐。这样就可以形成
生物电极的活体接触层,该层具有优异的导电性和
生物相容性,重量轻,制造成本低,即使被
水浸湿或干燥,导电性也不会大幅降低。本发明还提供了一种由
生物电极组合物形成活体接触层的
生物电极,以及制造该
生物电极的方法。