Samuel, JoriceTallec, GaylordCherns, PeterLing, Wai L.Raccurt, OlivierPoncelet, OlivierImbert, DanielMazzanti, Marinella2014-11-072014-11-072014-11-07201010.1039/b926031ehttps://infoscience.epfl.ch/handle/20.500.14299/108508WOS:000276153800035Different lanthanide chelates have been simultaneously embedded in a silica matrix yielding bright dual-mode lanthanide doped nanospheres which are uniform in size distribution, tunable, photostable, and leakage free. Depending on the chelate combination, two color emission with a single light source or tunable emission with multiple sources is obtained. © 2010 The Royal Society of Chemistry.text::journal::journal article::research article