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Flow Cytometry01:23

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The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
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Flow cytometer based on triggered supercontinuum laser illumination.

Nelly Rongeat1, Philippe Leproux, Vincent Couderc

  • 1HORIBA Medical, Parc Euromédecine, 34000 Montpellier cedex 4, France. nelly.rongeat@horiba.com

Cytometry. Part a : the Journal of the International Society for Analytical Cytology
|May 11, 2012
PubMed
Summary
This summary is machine-generated.

This study demonstrates a novel flow cytometer using a supercontinuum laser for advanced cell analysis. It efficiently discriminates human blood cell types using light scattering, electrical sizing, and fluorescence.

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Area of Science:

  • Biophotonics
  • Cellular Biology
  • Analytical Chemistry

Background:

  • Flow cytometry enables multiparametric cell analysis using fluorescence and light scattering.
  • Current methods often face limitations in fluorochrome selection and excitation wavelength matching.
  • Supercontinuum white light sources offer potential for broader spectral flexibility.

Purpose of the Study:

  • To validate a triggered supercontinuum laser for flow cytometry applications.
  • To demonstrate the system's capability for human blood cell analysis and sorting.
  • To explore the advantages of supercontinuum illumination in flow cytometry.

Main Methods:

  • Utilized a triggered supercontinuum laser in a flow cytometer.
  • Employed white light scattering, electric sizing, and fluorescence detection.
  • Performed cell sorting based on DNA/RNA staining with thiazole orange.

Main Results:

  • Successfully discriminated various white blood cell populations including monocytes, lymphocytes, and granulocytes.
  • Demonstrated efficient cell sorting of leukocyte subpopulations.
  • Achieved discrimination of cells with high RNA content, such as monoblasts and lymphoblasts.

Conclusions:

  • This work presents the first practical demonstration of flow cytometry utilizing triggered supercontinuum illumination.
  • The system efficiently discriminates human blood cell types using a "one cell-one shot" approach.
  • This technology opens new avenues for biophotonics research, including enhanced fluorochrome utilization and integration with techniques like coherent Raman spectroscopy.