Bio-electrode composition, bio-electrode, and method for manufacturing bio-electrode

A bio-electrode composition comprising:

• an electro-conductive polymer composite including
• (A) a π-conjugated polymer and
• (B) a dopant polymer containing a repeating unit-a1 having a hydroxy group and/or a carboxy group and a repeating unit-a2 having one or more selected from a sulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide, the dopant polymer having a weight-average molecular weight of 1,000 to 500,000;
• and
• (C) a crosslinking agent,
• having a reactive group selected from an isocyanate group, a blocked isocyanate group, a carbodiimide group, and an aziridine group,
• wherein the dopant polymer (B) contains, as the repeating unit-a1, a repeating unit A1-1 and/or a repeating unit A1-2 represented by the following general formulae (1),
• wherein R1 and R3 each independently represent a hydrogen atom or a methyl group, X1 and X2 each independently represent a single bond, a phenylene group, a naphthylene group, an ether group, an ester group, or an amide group;
• R2 and R4 each independently represent a single bond or a linear, branched, or cyclic hydrocarbon group having 1 to 20 carbon atoms and the hydrocarbon group is unsubstituted or substituted with an ether group or an ester group;
• “m” and “n” each represent an integer of 1 to 5, and a1-1 and a1-2 satisfy 0≤(a1-1)<1.0, 0≤(a1-2)<1.0, and 0<(a1-1)+(a1-2)<1.0.