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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.
In...

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Updated: May 31, 2026

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Quantum dot technology in flow cytometry.

Pratip K Chattopadhyay1

  • 1ImmunoTechnology Section, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland, USA.

Methods in Cell Biology
|June 28, 2011
PubMed
Summary

Quantum dots (QDs) revolutionize flow cytometry, enabling highly multiplexed experiments and improved resolution for dim markers. This guide covers QD technology, instrumentation, antibody conjugation, and potential challenges for researchers.

Area of Science:

  • Biotechnology
  • Analytical Chemistry
  • Immunology

Background:

  • Flow cytometry is a critical technique in biological research.
  • Traditional fluorescent dyes have limitations in spectral overlap and brightness.
  • Quantum dots (QDs) offer novel fluorescent properties for advanced applications.

Purpose of the Study:

  • To provide a comprehensive guide on utilizing quantum dot (QD) technology in flow cytometry.
  • To highlight the advantages of QDs for multiplexed analysis and improved resolution.
  • To address the technical considerations and challenges associated with QD implementation.

Main Methods:

  • Discussion of instrumentation requirements for QD-based flow cytometry.
  • Guidance on antibody conjugation strategies for QDs.

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Production and Targeting of Monovalent Quantum Dots
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Localization and Relative Quantification of Carbon Nanotubes in Cells with Multispectral Imaging Flow Cytometry

Published on: December 12, 2013

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Last Updated: May 31, 2026

Compact Quantum Dots for Single-molecule Imaging
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Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Localization and Relative Quantification of Carbon Nanotubes in Cells with Multispectral Imaging Flow Cytometry
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Localization and Relative Quantification of Carbon Nanotubes in Cells with Multispectral Imaging Flow Cytometry

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  • Demonstration of QD utility in multicolor flow cytometry panels.

    • Main Results:

    • QDs enable highly multiplexed flow cytometry experiments.
    • Improved resolution of dimly stained markers is achievable with QDs.
    • Successful antibody conjugation protocols are essential for optimal performance.

    Conclusions:

    • Quantum dot technology represents a significant advancement in flow cytometry.
    • Understanding technical aspects is crucial for successful adoption of QDs.
    • QDs offer enhanced capabilities for complex biological analyses.