New Fluorescent Nanomaterial Based on Silver Atoms and Organic Dye for Biosensing and Bioimaging Applications

We report on synthesis and studies of strongly fluorescent nanostructures formed of several Ag atoms with the aid of organic dye Thioflavin T that serves as sensitizer and molecular support. The 1:1 stoichiometry between silver atoms and dye molecules is observed in this complex formation. These novel structures are formed in a simple one-step way by photoreduction on illumination by UV light and are characterized by excitation and emission maxima at 340 nm and 450 nm correspondingly. These materials offer good prospects for different applications in biosensing and bioimaging technologies