Shine a light

A team of researchers at the University of Connecticut and the US Air Force Research Laboratory has used DNA electrospinning to produce nanofibers that incorporate two different fluorescent dye molecules. The structure allows energy to be passed from one dye to the other efficiently - fluorescence resonance energy transfer (FRET). The color of the resulting fluorescence dependent on the ratio of the two dyes. Writing in Angewandte Chemie, Gregory Sotzing and colleagues explain how they have now produced full-spectrum white light using this approach. The emergence of this and similar devices from the fields of optoelectronics, photonics, and nanoscience could lead to optimized materials for electromagnetic energy manipulation.