Amplified Fluorescence Quenching of Self-Assembled Polyelectrolyte−Dye Nanoparticles in Aqueous Solution

The present study shows that polyelectrolyte−dye complexes can self-assemble into nanoparticles in dilute aqueous solution. In this system, fluorescence from the nanoparticles can be efficiently quenched by ionic quenchers. The amplified fluorescence quenching of polyelectrolyte−dye nanoparticles provides a feasible platform to construct light-activated systems for sensor applications.