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Related Experiment Videos

Time window analysis and sorting.

J F Dunne1

  • 1Syntex Research, Palo Alto, California 94304.

Cytometry
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

This study introduces a new flow cytometry method for analyzing kinetic cellular responses within specific time windows. The developed technique enables precise timing of cell stimulation before laser interrogation, applicable to rapid cellular reactions.

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Area of Science:

  • Biotechnology
  • Cellular Biology
  • Analytical Chemistry

Background:

  • Kinetic cellular responses require precise timing for accurate analysis.
  • Traditional flow cytometry methods may lack the temporal resolution for rapid cellular events.
  • Analyzing cellular responses within seconds or minutes presents a technical challenge.

Purpose of the Study:

  • To develop novel flow cytometric hardware and procedures for analyzing kinetic cellular responses.
  • To enable the continuous analysis and sorting of cells within a specific time window of a kinetic response.
  • To implement a technique for precisely controlling the time between cell stimulation and laser interrogation.

Main Methods:

  • A new flow cytometric system was designed using balanced air pressure to deliver a stimulus-bead mixture.

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  • The stimulus-bead mixture is passively mixed with cells at a t-junction, distanced from the flow cell.
  • Air pressure regulation ensures a fixed and adjustable stimulation time prior to laser interrogation.

    • Main Results:

    • The developed technique allows for continuous analysis and sorting within a defined time window of kinetic responses.
    • Practical applications demonstrated the device's utility for analyzing cellular responses occurring in seconds to minutes.
    • The system is easily implementable on existing sorting flow cytometers.

    Conclusions:

    • The novel flow cytometry approach provides enhanced temporal control for analyzing rapid cellular kinetics.
    • This method expands the capabilities of flow cytometry for studying time-dependent cellular processes.
    • The device offers a versatile and accessible tool for researchers investigating fast cellular responses.