Solid phase carrier, ligand-bound solid phase carrier, method for detecting or separating target substance, and method for producing solid phase carrier

Abstract

Provided is a solid phase carrier which has high water dispersibility, allows facilitated binding of a ligand to a reactive functional group, and exhibits suppressed non-specific adsorption, and with which, in the case of using the solid phase carrier by having a ligand bound thereto, for example, detection of a target substance can be carried out with high sensitivity and low noise. Disclosed is a solid phase carrier having bound thereto a polymer including a structural unit represented by the following Formula (1) and a structural unit represented by the following Formula (2): wherein in Formula (1), Rrepresents a hydrogen atom or a methyl group; and Rrepresents an organic group having a zwitterionic structure, in Formula (2), Rrepresents a hydrogen atom or a methyl group Rrepresents —(C═O)—O—*, —(C═O)—NR—* (wherein Rrepresents a hydrogen atom or a methyl group; and the symbol * represents a position of bonding to Rin Formula (2)), or a phenylene group; in a case in which Rrepresents —(C═O)—O—*, Rrepresents a hydrogen atom, or an organic group having a reactive functional group, and in a case in which Rrepresents —(C═O)—NR—* or a phenylene group, Rrepresents an organic group having a reactive functional group, provided that Ris not an organic group having a zwitterionic structure.