Innovative MESF Standards for Accurate Quantification of Biological Nanoparticles in Flow Cytometry 2306500

A Anisha Jose (Beckman Coulter, Inc) E Evgenia Kim (Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196) B Boi Hoa San (Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196)

Abstract

Abstract Introduction The quantification of fluorescence intensity in flow cytometry is important for instrument sensitivity characterization and standardization of results. One of the key tools in this regard is Molecules of Equivalent Soluble Fluorochrome (MESF) beads. These beads are essential for standardizing fluorescence measurements and ensuring consistency across different experiments and instruments. Methods The quantification of fluorescence intensity in flow cytometry is important for instrument sensitivity characterization and standardization of results. One of the key tools in this regard is Molecules of Equivalent Soluble Fluorochrome (MESF) beads. These beads are essential for standardizing fluorescence measurements and ensuring consistency across different experiments and instruments. Results Preliminary evaluation using the CytoFLEX nano Flow Cytometer has confirmed the potential utility of the new nano-sized MESF beads Conclusion Once fully developed, these beads are anticipated to become an essential tool for MESF characterization and for standardizing instruments and assays in the growing field of small particle flow cytometry Funding Source n/a Topic Categories Technological Innovations in Immunology (TECH)

Article Details

Volume / Issue Vol. 215, Issue Supplement_1
Published August 01, 2026
ISSN 0022-1767
Publisher American Association of Immunologists

Authors (3)

A

Anisha Jose

Beckman Coulter, Inc

E

Evgenia Kim

Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196

B

Boi Hoa San

Research and Development, Beckman Coulter Life Sciences, Miami, FL 33196