公开(公告)号：US12123848B2

公开(公告)日：2024-10-22

申请号：US17598726

申请日：2020-02-20

Applicant: OSAKA UNIVERSITY

Inventor： Masateru Taniguchi ,  Takahito Ohshiro ,  Masakazu Sanada ,  Tadashi Miyagi

IPC: G01N27/49 ,  G01N27/327 ,  G01N33/487

CPC classification number: G01N27/49 ,  G01N33/48721

Abstract: A current measurement method for measuring a tunneling current in biopolymers passing through between a pair of electrodes includes arranging the electrodes in a liquid that contains an electrolyte and, while applying a voltage between the electrodes, measuring a current flowing between the electrodes via an electric double layer formed along surfaces of the electrodes. This enables measuring the current in consideration of the electric double layer. As a result, it is possible to more accurately measure the tunneling current in the biopolymers included in a liquid sample that contains an electrolyte.