An unprecedented core–shell structure was constructed by a co-assembly process. The organic alloy BA0.72BN0.28 can deposit on the BA rod via a solution-epitaxy first and then spread out at the tip by turning it into its original helical morphology.
Herein, we employ pH-dependent solubility equilibrium to develop the one-pot aqueous synthesis of dual-color emission fluorescent carbon nanosphere (DFCSs) with novel physicochemical properties.