Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 3, 2010
Previous Article Next Article

Sheathless inertial cell ordering for extreme throughput flow cytometry

Author affiliations

Abstract

Rapid and accurate differentiation of cell types within a heterogeneous solution is a challenging but important task for various applications in biological research and medicine. Flow cytometry is the gold standard in cell analysis and is regularly used for blood analysis (i.e., complete blood counts). Flow cytometry, however, lacks sufficient throughput to analyze rare cells in blood or other dilute solutions in a reasonable time period because it is an inherently serial process. In this study, we exploit inertial effects for label- and sheath-free parallel flow cytometry with extreme throughput. We demonstrate a microfluidic device that consists of 256 high-aspect (W = 16 µm, H = 37 µm) parallel channels yielding a sample rate up to 1 million cells s−1, only limited by the field-of-view of our high-speed optical interrogation method. The particles or cells flowing through the channels are focused to one uniform z-position (SD = ±1.81 µm) with uniform downstream velocity (Uave = 0.208 ± 0.004 m s−1) to reduce the probability of overlap and out-of-focus blur and provide similar cell signature images for accurate detection and analysis. To demonstrate a proof-of-concept application of our system operating at these throughputs, we conducted automated RBC and leukocyte counts on diluted whole blood and achieved high counting sensitivity and specificity (86–97%) compared to visual inspection of raw images. As no additional external forces are required to create ordered streams of cells, this approach has the potential for future applications in cost-effective hematology or rare-cell analysis platforms with extreme throughput capabilities when integrated with suitable large field-of view imaging or interrogation methods.

Graphical abstract: Sheathless inertial cell ordering for extreme throughput flow cytometry

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 18 Sep 2009, accepted on 25 Nov 2009 and first published on 18 Dec 2009


Article type: Paper
DOI: 10.1039/B919495A
Citation: Lab Chip, 2010,10, 274-280
  •   Request permissions

    Sheathless inertial cell ordering for extreme throughput flow cytometry

    S. C. Hur, H. T. K. Tse and D. Di Carlo, Lab Chip, 2010, 10, 274
    DOI: 10.1039/B919495A

Search articles by author