| 主权项 |
1. A substrate surface on which either a substance to detect analyte or an analyte per se is immobilized, which surface is formed by a treatment of substrate surface with a liquid which contains uncrosslinked polymer based on polyethylene glycol chain segment, said treatment conducted either simultaneously with the immobilization of said substance or analyte or after said substance or analyte has been immobilized on said surface,
wherein the substrate surface is selected from the group consisting of electrochemical sensor surface, surface plasmon sensor surface, quartz sensor surface, microplate surface for solid phase enzyme-linked immunoassay (ELISA), plastic film surface for protein blotting or nucleic acid blotting, microarray surface for the hybridization of nucleic acid, gold particle surface, semiconductor nano particle surface, silica particle surface, fine porous particle surface and particle surface of latex which contains one of the above-mentioned particles. |
