“…Then different volume curcumin solutions were added into PNBCDs solution drop by drop and a series of calculated concentration (0, 0.2, 0.5, 0.7, 1, 1. 5,3,5,6,7,8,9,10,12,14,16,18,20,30,40,50,60,70,80,90, 100, 120 mM) were prepared. Aer solution mixed to equilibrium, the PL spectra were recorded (l ex ¼ 311 nm) when PL emission maintained stabilization.…”