Thermo Scientific colored and fluorescent microspheres are hard-dyed (internally-dyed) polymer beads which utilize our Firefli™ process to incorporate the dye throughout the polymer matrix. This method produces bright fluorescent colors, minimizes photobleaching, and prevents dye leaching in aqueous media. 

Colored microspheres for applications where high visual contast is desired

Fluorescent Polymer Microspheres featuring bright, high contrast colors

Fluorescent Polymer Microspheres featuring bright, high contrast colors