公开(公告)号：US20190115854A1

公开(公告)日：2019-04-18

申请号：US15803708

申请日：2017-11-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myung-Suk CHUN ,  Byoungjin Chun ,  Ji-Young Lee ,  Heesoo Jeon

IPC: H02N3/00

CPC classification number: H02N3/00 ,  H02N1/08

Abstract: Disclosed herein is a method and an apparatus using microfluidic channel array for converting mechanical energy into electric energy by streaming potential and streaming current caused when the electrolyte liquid flows in a charged surface due to a pressure drop. The present invention relates to a method and an apparatus for designing channels with hierarchical structure in which a primary multi-channel is provided by radially arranging one or more unit channels, and each of the unit channels includes an inflow channel, an outflow channel, and a secondary multi-channel provided by arranging one or more channels in parallel, thereby improving output power and flow stability.

公开(公告)号：US20220113243A1

公开(公告)日：2022-04-14

申请号：US17083299

申请日：2020-10-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myung-Suk CHUN ,  Sun Mi LEE ,  Jae Hun KIM ,  Chansung PARK

IPC: G01N15/14 ,  G01N21/64 ,  B01L3/00

Abstract: Provided is an apparatus for cell particle sorting based on microfluidic-chip flow, by using a design in which Dean flow focusing occurring in a spiral channel and hydrodynamic filtration are coupled. The apparatus comprises a first substrate including a spiral channel having an inner surface and an outer surface based on a radius of curvature, a sample solution inlet, a medium inlet, and a spiral inner-outlet and a spiral outer-outlet both for discharging the particles, and a second substrate including a main channel in which the sample solution discharged from the first substrate and passing through an inter-substrate way flows and a cut-off width WC is set, a side channel allowing a medium introduced into the medium inlet to flow to focus the sample solution on a sidewall of the main channel, a plurality of branch channels connected to the sidewall of main channel and configured to receive the particles from the main channel, a main channel outlet, and at least one branch channel outlet.