ASSAY DEVICE

WIPO Patent Application WO/2023/204270

A1

[Problem] To provide an assay device with which stable liquid replacement in a microchannel is possible even for a liquid with a relatively small interfacial tension, or even for a microchannel for which the interfacial tension has been weakened by a surface treatment such as blocking. [Solution] The assay device has: an inlet 2; an internal channel 3 in which liquid injected from the inlet 2 flows; and a liquid absorption member 4 absorbing liquid which has passed through the internal channel 3. The internal channel 3 includes: a microchannel 31 having an assay area 31c; and a separation channel 32, which is for separating internal liquid when injection of the liquid is stopped, provided between the microchannel 31 and the liquid absorption member 4. The separation channel 32 has a channel surface change section that causes a change to the surface of the separation channel 32 which the liquid contacts.

JP2003517582	INDUSTRIAL APPLICABILITY Cards in which filling is associated with at least one buffer space.
JP4869602	Methods and equipment for dividing a test object into multiple channels of a microfluidic device
WO/2013/185125	MICROFLUIDIC DEVICE, SYSTEM, AND METHOD FOR TRACKING SINGLE CELLS AND SINGLE CELL LINEAGES

FUCHIWAKI YUSUKE (JP)
YAMAMURA SHOHEI (JP)

PCT/JP2023/015770

October 26, 2023

April 20, 2023

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AIST (JP)

G01N35/08; G01N37/00

WO2020045551A1

2020-03-05

JP6037184B2	2016-12-07
JP2015172492A	2015-10-01
JP5902426B2	2016-04-13

OKUYAMA, Shoichi et al. (JP)

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