Patent ID: 11859167
Assignee: TOHOKU UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC C  G | IPC C  G

Claim 4:
5. An electrochemical measurement device comprising a plurality of working electrodes, each of the plurality of working electrodes including an electrode surface supplying or receiving electrons to or from a chemical substance generated or consumed in a biological sample in a solution to cause an oxidation-reduction reaction, wherein
all of the electrode surfaces have diameter dimensions del not more than 80 μm and are arrayed on one flat surface, on which x-y orthogonal coordinates are defined, in a lattice shape such that the electrode surfaces are located on lattice points, and
a plurality of wall plates are provided to be arrayed at intervals less than 100 μm in an x direction on the one flat surface where the electrode surfaces are arrayed, each of the plurality of wall plates extending in a y direction alongside two or more electrode surfaces arranged in the y direction, having a height h3 satisfying

h3=21.8(del+0.8)/(del+9.7)±5[μm],, and being impervious to a dissolved substance in the solution such that the plurality of wall plates reduces crosstalk in the x direction among the electrode surfaces located on the lattice points but the dissolved substance is not blocked from diffusing in the y direction.