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Quantitative flow cytometry using quantitative streptavidin-protein G-biotin beads (qBeads).
Maitreyi Bharath1, Anh Le1, Vaishnavi Konda1
1Department of Biological and Life Sciences, Aspiring Scholars Directed Research Program, United States of America.
Journal of Immunological Methods
|June 2, 2025
Summary
This study introduces new quantitative streptavidin-Protein G-biotin beads (qBeads) for quantitative flow cytometry (qFCM). These beads overcome limitations of current methods, enabling standardized assays for diverse biomedical applications.
Area of Science:
- Biotechnology
- Analytical Chemistry
- Immunology
Background:
- Quantitative flow cytometry (qFCM) is vital for cellular and molecular analysis in research and diagnostics.
- Existing qFCM beads have limitations due to chemical conjugation methods.
Purpose of the Study:
- To explore streptavidin-coated beads with Protein G-biotin for qFCM.
- To develop standardized assays using these novel quantitative beads.
Main Methods:
- Utilized streptavidin-coated beads conjugated with a defined quantity of Protein G-biotin.
- Applied these quantitative streptavidin-Protein G-biotin beads (qBeads) in qFCM analysis.
- Tested both direct and indirect assay methods.
Main Results:
- Demonstrated the utility of qBeads for qFCM analysis.
- Showcased the successful application of qBeads through direct and indirect methods.
- Validated qBeads as a viable tool for quantitative measurements.
Conclusions:
- Quantitative streptavidin-Protein G-biotin beads (qBeads) offer a promising alternative for qFCM.
- These qBeads facilitate the development of standardized assays for broad applications.
- The study highlights a significant advancement in quantitative flow cytometry bead technology.
