Inertial focusing and ordering in microfluidic channels with non-rectangular cross-sections = 비직사각형 단면을 가지는 미세유체채널에서의 관성집중과 정렬에 관한 연구

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Microfluidic systems can provide methods for precise manipulation of microparticle, for example, separation, focusing and ordering of microbeads and cells. Majority of microparticle manipulation techniques use external force field such as dielectrophoresis, acoustic wave, magnetic field, which typically lead to low throughput and complicated devices fabrication and operation. Inertial microfluidics can provide high-throughput micro-particle manipulation without sheath flow or external field. However inertial microfluidic phenomena are studied only with rectangular cross-section channels. We studied inertial focusing and ordering in non-rectangular cross-section channels for better understanding mechanism of inertial focusing. We measured fo-cusing positions in triangular and semi-circular cross-section channels with varying Reynolds number. We observed broken symmetry, from rectangular cross-section, leads to two or three focusing positions. These results can be directly utilized to control particle focusing and self-assembly in inertial microfluidic systems.
Advisors
Lee, Won-Heeresearcher이원희
Description
한국과학기술원 : 나노과학기술학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
568855/325007  / 020118145
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 나노과학기술학과, 2014.2, [ iv, 37 p. ]

Keywords

Inertial microfluidics; 미세유체 장치에서 입자 조작; 관성 집중; 비직사각형 단면; 입자 집중; 관성 미세유체역학; particle focusing; non-rectangular cross-section; inertial focusing; on-chip particle manipulation

URI
http://hdl.handle.net/10203/197599
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568855&flag=dissertation
Appears in Collection
NT-Theses_Master(석사논문)
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