Silver Nanoparticles Labeled Streptavidin. Because streptavidin-binding biotin has an affinity effect similar to chemical coupling, silver nanoparticles labeled streptavidin is considered as a common carrier for the preparation of various types of biological fluorescent probes and has been widely used in various fields. BOC Sciences provides silver nanoparticles labeled streptavidin services to customers worldwide to promote your research. As a new type of biomarker, silver nanoparticles labeled streptavidin can be widely used in many fields such as cell labeling, living cell imaging, in vivo fluorescence microscopy imaging of living animals and rapid immunological diagnosis.