According to the present invention, there can be provided a structure preventing the nonspecific adsorption, and a target substance-detecting element and a target substance-detecting kit. A first aspect of the present invention is a structure including: a substrate; and a membrane, present on the surface of the substrate, having a polymer of a monomer represented by the following General Formula (1) or (2):
(wherein R represents H or CH
3
; x represents an integer of 2 to 5, and y represents an integer of 1 to 7, with the proviso that x+y=an integer of 3 to 10), and
(wherein R
1
=H or CH
3
, and R
2
represents O or NH; a represents an integer of 2 to 5, and b represents an integer of 1 to 7, with the proviso that a+b=an integer of 3 to 10.)
根据本发明,可以提供一种防止非特异性吸附的结构,以及一种目标物质检测元件和目标物质检测试剂盒。本发明的第一方面是一种结构,包括:基板;以及存在于基板表面上的膜,其具有由以下通式(1)或(2)表示的单体的聚合物:(其中R表示H或
CH3;x表示2至5的整数,y表示1至7的整数,但x+y等于3至10的整数),以及(其中R1=H或 ,R2表示O或NH;a表示2至5的整数,b表示1至7的整数,但a+b等于3至10的整数)。