TEST CIRCUIT AND METHOD OF ITS MANUFACTURING Russian patent published in 2023 - IPC G01N21/78 G01N35/08 

FIELD: sheet-shaped test microfluidic microcircuit.

SUBSTANCE: sheet-shaped test microfluidic microcircuit: the first layer on the front surface side and the second layer on the back surface side; the first layer and the second layer are adjacent to each other; one of the first layer and the second layer has a liquid receiving section A; the first layer has at least a detection confirmation section B; the second layer has at least a liquid flow section D adjacent to the detection confirmation section B, and a liquid passage E connected to the liquid flow section D; in the case where the liquid receiving section A is provided in the first layer, the liquid receiving section A is located at a distance from the detection confirmation section B; when the sample test liquid falls into the liquid receiving section A, the test liquid passes through the liquid receiving section A, the liquid passage E and the liquid flow section D in that order by capillary action and flows to the detection confirmation section B; the first layer is formed on one surface of one sheet material, and the second layer is formed on another surface of the sheet material.

EFFECT: significant suppression of uneven color development of the target substance with a charged marking medium, as well as simplification and high accuracy of the method for manufacturing a test microcircuit.

15 cl, 16 dwg, 6 tbl