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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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Related Experiment Video

Updated: Jun 22, 2026

Fluorescence detection methods for microfluidic droplet platforms
14:16

Fluorescence detection methods for microfluidic droplet platforms

Published on: December 10, 2011

Fluctuations in closed-loop fluorescent particle tracking.

Andrew J Berglund, Kevin McHale, Hideo Mabuchi

    Optics Express
    |June 24, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a new theory for closed-loop particle tracking, accurately predicting fluorescent particle motion. The research also offers advanced methods for particle localization and classification using real-time tracking data.

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    Published on: December 1, 2018

    Area of Science:

    • Physics
    • Physical Chemistry
    • Biophysics

    Background:

    • Particle tracking is crucial for studying molecular dynamics.
    • Existing methods like fluorescence correlation spectroscopy (FCS) have limitations.
    • Closed-loop tracking offers potential for enhanced precision.

    Purpose of the Study:

    • To develop a comprehensive theory for closed-loop particle tracking.
    • To generalize fluorescence correlation spectroscopy (FCS) theory.
    • To introduce novel applications for particle localization and classification.

    Main Methods:

    • Development of a theoretical framework for closed-loop particle tracking.
    • Comparison of theoretical predictions with experimental data.
    • Generalization of open-loop fluorescence correlation spectroscopy (FCS) theory.

    Main Results:

    • Excellent quantitative agreement between theory and experimental results.
    • Demonstration of a method for precise particle localization.
    • Development of an algorithm for rapid particle classification.

    Conclusions:

    • The presented theory accurately describes closed-loop particle tracking.
    • The generalized FCS theory provides a unified framework.
    • The developed applications enable advanced particle analysis.