A spiral inertial filtration (SIFT) device that is capable of high-throughput (1 ml/min), high-purity particle separation while concentrating recovered target particles by more than an order of magnitude is reported. This device is able to remove large fractions of sample fluid from a microchannel without disruption of concentrated particle streams by taking advantage of particle focusing in inertial spiral microfluidics, which is achieved by balancing inertial lift forces and Dean drag forces. To enable the calculation of channel geometries in the SIFT microsystem for specific concentration factors, an equivalent circuit model was developed and experimentally validated. Large particle concentration factors were then achieved by maintaining either the average fluid velocity or the Dean number throughout the entire length of the channel during the incremental removal of sample fluid. The SIFT device was able to separate MCF7 cells spiked into whole blood from the non-target white blood cells (WBC) with a recovery of nearly 100% while removing 93% of the sample volume, which resulted in a concentration enhancement of the MCF7 cancer cells by a factor of 14.
Skip Nav Destination
Article navigation
March 2014
Research Article|
April 01 2014
High-throughput particle separation and concentration using spiral inertial filtration
Jeffrey M. Burke;
Jeffrey M. Burke
1
Fischell Department of Bioengineering, University of Maryland
, College Park, Maryland 20742, USA
Search for other works by this author on:
Rebecca E. Zubajlo;
Rebecca E. Zubajlo
1
Fischell Department of Bioengineering, University of Maryland
, College Park, Maryland 20742, USA
Search for other works by this author on:
Elisabeth Smela;
Elisabeth Smela
2
Department of Mechanical Engineering, University of Maryland
, College Park, Maryland 20742, USA
Search for other works by this author on:
Ian M. White
Ian M. White
a)
1
Fischell Department of Bioengineering, University of Maryland
, College Park, Maryland 20742, USA
Search for other works by this author on:
a)
Author to whom correspondence should be addressed. Electronic mail: ianwhite@umd.edu
Biomicrofluidics 8, 024105 (2014)
Article history
Received:
January 17 2014
Accepted:
March 24 2014
Citation
Jeffrey M. Burke, Rebecca E. Zubajlo, Elisabeth Smela, Ian M. White; High-throughput particle separation and concentration using spiral inertial filtration. Biomicrofluidics 1 March 2014; 8 (2): 024105. https://doi.org/10.1063/1.4870399
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
A traveling surface acoustic wave-based micropiezoactuator: A tool for additive- and label-free cell lysis
Sushama Agarwalla, Sunil Kumar Singh, et al.
pH effects on capture efficiency and deposition patterns in sessile droplet immunoassays: An XDLVO analysis
Vidisha Singh Rathaur, Nachiket Aashish Gokhale, et al.
A flexible strategy to fabricate trumpet-shaped porous PDMS membranes for organ-on-chip application
Yingying Xie, Yaqiong Guo, et al.