“…On the other hand, non-conjugated so materials that might have a better solubility, lower cost, higher exibility, lower cytotoxicity, better biocompatibility, and naturally occurring, 8 are usually taken for granted as nonemissive materials. Until recently, some non-conjugated materials, such as 1,1,2,2-tetraphenylethane, 9 poly[(maleic anhydride)-alt-(vinyl acetate)], 10 polyisobutene succinic anhydrides and imides, 11 and steroidal saponin digitonin, 12 were reported to show amazing ultraviolet (UV) or blue aggregation-induced emission (AIE). 9,13 Our research work continuously focus on the synthesis, optical properties, and sensing applications of N,N 0 -bis(salicylidene)ethylenediamine (salen), a particular class of salicylaldehyde-based bis-Schiff base (Fig.…”