公开(公告)号：GB2558154B

公开(公告)日：2018-12-12

申请号：GB201807595

申请日：2016-09-07

Applicant: IBM

Inventor： RODRIGO NEUMANN BARROS FERREIRA ,  MICHAEL ENGEL ,  MATHIAS BERNHARD STEINER

IPC: G01R33/07 ,  G01F1/708 ,  G01R33/12

Abstract: A method of detecting a particle comprises magnetizing a particle using an AC magnetic field; generating an AC voltage in a sensing device having a conductive substantially 2-dimensional lattice structure from the magnetized particle; superimposing a DC magnetic field on the generated AC voltage in the sensing device; and measuring an AC Hall voltage at the sensing device.

公开(公告)号：GB2558154A

公开(公告)日：2018-07-04

申请号：GB201807595

申请日：2016-09-07

Applicant: IBM

Inventor： RODRIGO NEUMANN BARROS FERREIRA ,  MICHAEL ENGEL ,  MATHIAS BERNHARD STEINER

IPC: G01R33/07 ,  G01F1/708 ,  G01R33/12

Abstract: A method of detecting a particle comprises magnetizing a particle using an AC magnetic field; generating an AC voltage in a sensing device having a conductive substantially 2-dimensional lattice structure from the magnetized particle; superimposing a DC magnetic field on the generated AC voltage in the sensing device; and measuring an AC Hall voltage at the sensing device.

公开(公告)号：GB2565668B

公开(公告)日：2020-10-14

申请号：GB201817023

申请日：2017-03-17

Applicant: IBM

Inventor： JAIONE TIRAPU AZPIROZ ,  MATHIAS BERNHARD STEINER ,  MICHAEL ENGEL

IPC: B01L3/00 ,  G01N15/00

公开(公告)号：GB2565668A

公开(公告)日：2019-02-20

申请号：GB201817023

申请日：2017-03-17

Applicant: IBM

Inventor： JAIONE TIRAPU AZPIROZ ,  MATHIAS BERNHARD STEINER ,  MICHAEL ENGEL

IPC: B01L3/00 ,  G01N15/00

Abstract: Method, apparatus, and computer program product for a microfluidic channel having a cover opposite its bottom and having electrodes with patterned two-dimensional conducting materials, such as graphene sheets integrated into the top of its bottom. Using the two- dimensional conducting materials, once a fluid sample is applied into the channel, highly localized modulated electric field distributions are generated inside the channel and the fluid sample. This generated field causes the inducing of dielectrophoretic (DEP) forces. These DEP forces are the same or greater than DEP forces that would result using metallic electrodes because of the sharp edges enabled by the two-dimension geometry of the two- dimensional conducting materials. Because of the induced forces,micro/nano-particles in the fluid sample are separated into particles that respond to a negative DEP force and particles that respond to a positive DEP. Microfluidic chips with microfluidic channels can be made using standard semiconductor manufacturing technology.