Near-infrared (NIR) persistent luminescence is an exciting phenomenon in which phosphors can continue to emit photons for weeks after excitation ceases. In article number 1500001, Gang Han and co-workers report a simple, one-step mesoporous template method for creating NIR-emitting nanocomposites based on zinc and gallium. The authors find that the persistent luminescence of the nanocomposites could be repeatedly recharged using white light from a light-emitting diode (LED) in both a simulated deep-tissue environment and a live mouse model. This concept paves the way to application of such nanocomposites in the fields of photonics and biophotonics.
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Li et al. (2015) studied this question.
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