Continuous separation of particles in a PDMS microfluidic channel via travelling surface acoustic waves (TSAW).
basic_science · Level V
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- Record sourced from PubMed, PMID 23982077.
- Also identified by DOI 10.1039/c3lc50451d.
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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.