An automated cyclic particle extractor

Han Sheng Chuang, Steven T. Wereley, Stephen C. Jacobson

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Based on diffusion mechanism, a program-controlled cyclic particle extraction on an integrated PDMS microfluidic platform is presented. The platform comprises on-chip pneumatic peristaltic pumps and valves connected to a PCbased relay board, hence allowing programmable manipulations. The main concept is cycling a sample stream along with an extraction stream multiple times to enhance the particle separation. A sample solution containing 3-μm and 0.5μm particles was utilized to demonstrate the process. The average flow rate was 4.75 mm/s and the extraction channel length was 84.3 mm. The relatively accumulative concentration for the 0.5-μm particle was 7.52% at the 1st cycle and became 37.99% at the 10lh cycle. The result shows an expected improvement of particle concentration after the cyclic extraction. Higher efficiency can be achieved with more cycles.

Original languageEnglish
Title of host publicationProceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages4
EditionPART B
ISBN (Print)9780791843857
Publication statusPublished - 2010 Jan 1
EventASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
Duration: 2009 Nov 132009 Nov 19

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
NumberPART B


OtherASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009
CountryUnited States
CityLake Buena Vista, FL

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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