Flamma® Fluors PS Bead provided by BioActs, as the applied material for diagnostics and biochemistry, etc., can be used for the unique performance according to fluorescent marker and organism particle size after loading our already developed various bright fluorescent dyes on the surface or inside. To conduct applied tests in each different field as such, we are progressing custom labeling in consideration of fluorescent wavelength and Intensity desired by users and we modified the surface using carboxylic acid so that a covalent bond of the materials such as nucleic acid, antigen, peptide, antibody, etc. can be possible. In the case of Bioimaging or Biosensing applied field, each different bead specification such as Bead size, Surface modification, Single or Multiple fluorescent dye, Fluorescence intensity is required depending on the user Bead size, Surface modification, Single or Multiple fluorescent dye, Fluorescence intensity, etc. Therefore, BioActs provides a customized service through feedback with the customer. Our technical note provides a variety of information with applied field and tables using PS Bead. Polystyrene bead size can be supplied within the range of 100nm – 20um.  Surface Modification: Carboxylic acid. Diameter: 0.5 um. Appearance: Deep Red. Solids: 2.0 %