Electrode chip for biological application and its using method

摘要

This invention relates to a technology for preventing leakage of liquid from gel ( 70 ). The electrode chip ( 10 ) comprises a cup-like support ( 20 ) including a cup part ( 210 ), and a sheet-like support ( 30 ) attached with an electrode layer ( 40 ). The gel ( 70 ) in the cup part ( 210 ) delivers liquid ( 700 ) containing water confined at the time of crosslinking. The liquid ( 700 ) moves by capillarity from the gel ( 70 ) side through a narrow gap between the outer flange ( 220 ) of the cup-like support ( 20 ) and the outside part ( 310 o) of the sheet-like support ( 30 ) in a direction away from the gel ( 70 ). Since a groove ( 80 ) exists in the vicinity of the cup part ( 210 ) and the gap is large at that part, capillarity is broken thereat.