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Encapsulation of C504, R560, R6G, R640, and NB dyes within each nanoparticle. (a) Absorption and emission (normalized) spectra of the dyes; (b) synchronized fluorescence spectrum of the particles scanned with the fixed difference between excitation and emission of 10 nm; (c) the fluorescence spectrum of Star-dot particles excited with 480 nm; contributions of individual dyes are shown with the solid lines.
