Chemiluminescence behaviour in the core region of water/oil/water double emulsion droplets with cholesteric liquid crystalline middle phase was demonstrated.

We have fabricated water-in-oil-in-water (W/O/W) double emulsion droplets with a cholesteric liquid crystalline (CLC) material, which is a mixture of a nematic liquid crystalline compound, 4-cyano-4 -pentylbiphenyl (5CB), and a chiral dopant, cholesteryl oleyl carbonate (COC), as the middle phase and an aqueous poly(vinylalcohol) (PVA) solution as the inner and outer phases (CLC core-shell microspheres).Here we report the strongly temperature-dependent color change of CLC core-shell microsphere.