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Related Concept Videos

Flow Cytometry01:23

Flow Cytometry

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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Related Experiment Video

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Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
11:54

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

Microscope-based label-free microfluidic cytometry.

Xuantao Su1, Sean E Kirkwood, Manisha Gupta

  • 1Department of Electrical & Computer Engineering, University of Alberta, Edmonton, Alberta, Canada. xtsu@sdu.edu.cn

Optics Express
|January 26, 2011
PubMed
Summary
This summary is machine-generated.

A novel microscope-based microfluidic cytometer analyzes cell light scatter patterns without labels. This technique determines cell size, orientation, and nanostructure, advancing cell analysis capabilities.

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Area of Science:

  • Biophotonics and Microfluidics
  • Cellular Analysis and Imaging

Background:

  • Traditional cell analysis often relies on labeling, which can alter cell properties.
  • Accurate characterization of cellular features like size, orientation, and internal nanostructure is crucial for diagnostics.

Purpose of the Study:

  • To develop and validate a label-free microfluidic cytometer for single-cell analysis.
  • To demonstrate the capability of analyzing cellular information from light scatter patterns.

Main Methods:

  • Development of a microscope-based microfluidic cytometer for acquiring 2D light scatter patterns.
  • Utilized finite-difference time-domain (FDTD) numerical simulations for validation against experimental data.
  • Tested the device on various cell types, including platelets and hematopoietic stem/progenitor cells.

Main Results:

  • The developed cytometer successfully acquired 2D light scatter patterns from single cells.
  • FDTD simulations showed favorable agreement with experimental scatter patterns from beads and cells.
  • The device demonstrated sensitivity to small cells like platelets and CD34+ cells.

Conclusions:

  • A label-free microfluidic cytometric technique capable of detailed cellular analysis was successfully developed.
  • The technique shows promise for evaluating cellular characteristics, including size, orientation, and internal nanostructure.
  • This method offers a label-free alternative for analyzing diverse cell populations.