Continuous separation of particles in a PDMS microfluidic channel via travelling surface acoustic waves (TSAW)

Ghulam Destgeer; Kyung Heon Lee; Jin Ho Jung; Anas Alazzam; Hyung Jin Sung

doi:10.1039/c3lc50451d

Continuous separation of particles in a PDMS microfluidic channel via travelling surface acoustic waves (TSAW)

Ghulam Destgeer
, Kyung Heon Lee
, Jin Ho Jung
, Anas Alazzam
, Hyung Jin Sung

Mechanical & Nuclear Engineering

Department of Industrial and Systems Engineering Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

184 Scopus citations

Abstract

We demonstrate a simple and efficient device for the continuous label-free separation of microparticles using travelling surface acoustic waves (TSAW). A focusing interdigitated unidirectional transducer released high frequency (133.3 MHz) TSAW normal to the fluid flow direction to segregate 3 μm particles from 10 μm particles with a separation efficiency of 100%. The TSAW based separator does not necessitate a tight alignment of the PDMS microchannel with the transducer.

Original language	British English
Pages (from-to)	4210-4216
Number of pages	7
Journal	Lab on a Chip
Volume	13
Issue number	21
DOIs	https://doi.org/10.1039/c3lc50451d
State	Published - 7 Nov 2013

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AU - Sung, Hyung Jin

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AB - We demonstrate a simple and efficient device for the continuous label-free separation of microparticles using travelling surface acoustic waves (TSAW). A focusing interdigitated unidirectional transducer released high frequency (133.3 MHz) TSAW normal to the fluid flow direction to segregate 3 μm particles from 10 μm particles with a separation efficiency of 100%. The TSAW based separator does not necessitate a tight alignment of the PDMS microchannel with the transducer.

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Continuous separation of particles in a PDMS microfluidic channel via travelling surface acoustic waves (TSAW)

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