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),
R1 represents a hydrogen atom or a methyl group; and
R2 represents an organic group having a zwitterionic structure,
in Formula (2),
R3 represents a hydrogen atom or a methyl group
R4 represents -(C=O)-O-*, -(C=O)-NR6-* (wherein R6 represents a hydrogen atom or a methyl group; and the symbol * represents a position of bonding to R5 in Formula (2)), or a phenylene group;
in a case in which R4 represents -(C=O)-O-*, R5 represents a hydrogen atom, or an organic group having a reactive functional group, and in a case in which R4 represents -(C=O)-NR6-* or a phenylene group, R5 represents an organic group having a reactive functional group,
provided that R5 is not an organic group having a zwitterionic structure.
本发明提供了一种固相载体,该固相载体具有高
水分散性,可促进
配体与活性官能团的结合,并可抑制非特异性吸附,例如,在使用该固相载体结合
配体的情况下,可高灵敏度、低噪音地检测目标物质。本发明公开了一种固相载体,其上结合了一种聚合物,该聚合物包括下式(1)表示的结构单元和下式(2)表示的结构单元:
式(1)中
R1 代表氢原子或甲基;以及
R2 代表具有齐聚物结构的有机基团、
在式 (2) 中
R3 代表氢原子或甲基
R4代表-(C=O)-O-*、-(C=O)-NR6-*(其中R6代表氢原子或甲基;符号*代表在式(2)中与R5键合的位置)或亚苯基;
在 R4 代表-(C=O)-O-*的情况下,R5 代表氢原子或具有活性官能团的有机基团;在 R4 代表-(C=O)-NR6-*或亚苯基的情况下,R5 代表具有活性官能团的有机基团、
前提是 R5 不是具有齐聚物结构的有机基团。