Luminescence Resonance Energy Transfer in a Multiple-Component, Self-Assembled Supramolecular Hydrogel

Cascade energy transfer from a sensitizer to Tb^III then to fluorescent dyes was studied for the first time in a supramolecular hydrogel. Efficient energy transfer from Tb^III to the dyes was observed, as established by time-delayed emission and excitation spectral analysis, lifetime data, and microscopic studies.