The high content of blue light presented by current LEDs can be harmful to the human retina, especially for children, and has a negative impact on our brain´s chemistry. Rubén Costa, researcher at the IMDEA Materials Institute of Madrid; Elena Lalinde and Jesús Berenguer, from the University of La Rioja, and Javier García, from the University of Alicante, have succeeded at producing a material similar to sand (silica nanoparticles) that emits high quality white light for a new generation of LEDs hybrids. Read more at LED professional.