`
`A cell culture chip has a stack structure formed by sequentially
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`stacking: a first electrode provided on a main surface of a first board; a first
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`partition wall layer including a first main flow path, anda first inlet flow path
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`and a first outlet flow path connected to the first main flow path; a planar mesh
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`structure sheet used as a scaffolding material for cells; a second partition wall
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`layer including a second main flow path, and a second inlet flow path and a
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`second outlet flow path connected to the second main flow path; and a second
`
`10
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`electrode provided on a main surface of a second board, in which the planar
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`mesh structure sheet is sandwiched between the first partition wall layer and
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`the second partition wall layer, and, among aperture ratios of a surface of the
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`planar mesh structure sheet facing the first partition wall layer, an aperture
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`ratio of a portion facing the first main flow path is greater than an aperture
`
`15
`
`ratios of portions facing thefirst inlet flow path andthefirst outlet flow path,
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`and, among aperture ratios of a surface of the planar mesh structure sheet
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`facing the second partition wall layer, an aperture ratio of a portion facing the
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`second main flow path is greater than an aperture ratios of portions facing the
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`secondinlet flow path and the second outlet flow path.
`
`20
`
`