Leukocyte count and two-part differential in whole blood based on a portable microflow cytometer

W. Shi, S. Zheng, H. L. Kasdan, A. Fridge, Y. C. Tai

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

7 Scopus citations

Abstract

This work demonstrated leukocyte count and two-part leukocyte differential from the whole blood based on a portable microflow cytometer system. Leukocytes are selectively stained with a fluorescent dye, Acridine Orange (AO). The blood sample is then pumped through a disposable microfluidic device for fluorescence sensing. Under blue LED excitation (460nm), the green fluorescence from DNA and the red fluorescence from RNA are detected simultaneously with two photomultiplier tubes (PMT). Leukocytes are counted and differentiated into two parts, lymphocyte versus non-lymphocyte, based on their fluorescence signatures. The results, including leukocyte absolute count and lymphocyte ratio, matched well with the commercial hemacytometer counts (maximal error 9.0%, correlation coefficient ∼0.8). We also tested the system for the first time under a zero-gravity (zero-G) environment that facilitated its application in space missions.

Original languageEnglish (US)
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages616-619
Number of pages4
DOIs
StatePublished - Dec 11 2009
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: Jun 21 2009Jun 25 2009

Publication series

NameTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

OtherTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
CountryUnited States
CityDenver, CO
Period6/21/096/25/09

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Shi, W., Zheng, S., Kasdan, H. L., Fridge, A., & Tai, Y. C. (2009). Leukocyte count and two-part differential in whole blood based on a portable microflow cytometer. In TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 616-619). [5285400] (TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems). https://doi.org/10.1109/SENSOR.2009.5285400