公开(公告)号：US20240091771A1

公开(公告)日：2024-03-21

申请号：US18246143

申请日：2021-09-17

申请人： NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY ,  NH FOODS LTD.

发明人： Yusuke FUCHIWAKI ,  Masato TANAKA ,  Shohei YAMAMURA ,  Naoki MORISHITA ,  Kumiko KAMIYA ,  Seiichiro MATSUZAKI

IPC分类号： B01L3/00

CPC分类号： B01L3/502723 ,  B01L2300/048 ,  B01L2300/069

摘要： An assay device and an assay method are each capable of ensuring the accuracy of a target substance detection section. The assay device includes a plurality of assay units 100, each assay unit 100 including a microfluidic channel configured to allow a liquid to flow; a porous absorbing medium disposed at a distance from one end of the microfluidic channel, the one end being located on one side in a flow direction of the liquid; and a separation space disposed between the one end of the microfluidic channel and the porous absorbing medium, in which the microfluidic channel includes, in the microfluidic channel, a detection section 14 having immobilized thereon a substance capable of specifically reacting with a target substance, and an internal standard section 54 having immobilized thereon an internal standard substance, and each assay unit includes two parallel ventilation passages that are respectively adjacent to both sides of the microfluidic channel in the width direction orthogonal to the flow direction, the two parallel ventilation passages communicating with the microfluidic channel to allow for air circulation.