ELECTRIC CURRENT MEASURING INSTRUMENT HAVING ARTIFICIAL LIPID DOUBLE-MEMBRANE

摘要

A current measuring instrument comprises an upper solution tank (3), a lower solution tank (8) formed with a support layer (5) in the bottom surface and is adapted to measure electric current flowing through an artificial lipid double-membrane (2) formed in a small hole (4) in the upper solution tank (3), wherein the lower solution tank (8) is surrounded by the bottom plate (6) and a spacer member (7a) and thereby formed in the lower region of the upper solution tank (3). Reducing the pressure in the lower solution tank (8) causes the artificial lipid double-membrane (2) defined by the small hole (4) to expand toward the lower solution tank (8) so as to be thinned. Thus, the artificial lipid double-membrane (2) is supported in its thinned state by the support layer.