1. A material for blood purification, the material comprising a water-insoluble
material in which a ligand having an amide group(s) and an amino group(s) is bound
to a substrate,
wherein the content of the amide group(s) is 3.0 to 7.0 mmol per 1 g dry weight of the water-insoluble material; and
wherein the content of the amino group(s) is 1.0 to 7.0 mmol per 1 g dry weight of the water-insoluble material.
2. The material for blood purification, according to claim 1, wherein the ligand
having the structure represented by Formula (I) below is bound to the substrate:
vwwwwww
I °
H H2
(I)
(wherein X is an amino group; and the wavy line represents a position at which the ligand is bound to the substrate).
3. The material for blood purification, according to claim 1 or 2, wherein the
ligand has a phenyl group, and the ligand having the structure represented by
Formula (II) below is bound to the substrate:
wwwwww
N C A
H H2
(I I) (wherein X is an amino group; A is a linker; B is a hydrogen atom or halogen atom;
and the wavy line represents a position at which the ligand is bound to the substrate);
and
wherein the content of the phenyl group is more than 0 mmol and not more than
7.0 mmol per 1 g dry weight of the water-insoluble material.
4. The material for blood purification, according to any one of claims 1 to 3,

wherein the substrate is a polystyrene or polysulfone, or a derivative thereof.
5. The material for blood purification, according to any one of claims 1 to 4, wherein the material is in the form of fibers or particles.
6. The material for blood purification, according to any one of claims 1 to 5, wherein the material is in the form of a knitted fabric having an opening ratio of 0.1 to 30.0%.
7. The material for blood purification, according to any one of claims 1 to 6, wherein the material is for removing a cytokine and an activated leukocyte-activated platelet complex.
8. An apparatus for blood purification, the apparatus comprising the material for blood purification, according to any one of claims 1 to 7.