Patent ID: 11312831

Abstract:
The present invention relates to a carrier for bio-related molecule immobilization, which comprises a resin substrate, an amino group-containing compound layer that is formed on the resin substrate, and a polyvalent carboxylic acid layer that is formed on the amino group-containing compound layer. The carboxyl groups in the polyvalent carboxylic acid layer are actively esterified; and the (COO peak intensity)/(C—C peak intensity) ratio of the C1s spectrum is from 0.064 to 0.12 (inclusive) if the carrier surface before the active esterification is measured by X-ray photoelectron spectroscopy. The present invention also relates to a carrier for bio-related molecule immobilization, which comprises a water repellent resin substrate, an aminoalkyl silane layer that is formed on the resin substrate and a polyvalent carboxylic acid layer that is formed on the aminoalkyl silane layer, and which is characterized in that: the carboxyl groups in the polyvalent carboxylic acid layer are actively esterified; and the resin substrate is exposed after the formation of the aminoalkyl silane layer.