Fluorescent labeling of biomolecules has shown to be an essential tool in numerous biological studies, and the application of labeling or staining compounds has considerably aided the understanding of complicated biological interactions in biology. Due to their superior fluorescence qualities, silica nanobeads are used in biosensing, bioimaging, and biological labeling, among other applications.
Ultrastable particles can be employed in super-resolution techniques like stimulated emission depletion (STED) microscopy and single-particle imaging thanks to their extreme resistance to photobleaching.
Source: Merck