Modulation of circularly polarized luminescence by swelling of microgels functionalized with enantiopure [Ru(bpy)] luminophores.

Chemoresponsive microgels functionalized with enantiomeric - or -[Ru(bpy)] showed tunable chiroptical properties upon swelling and shrinking. The tuning is triggered by a modulation of the local mobility of [Ru(bpy)] upon addition of fructose, controlling interactions and distances between [Ru(bpy)] and phenylboronic acid.