Recently, Wang et al. studied the AIE properties of several FDA-approved fluoroquinolone antibiotics (norfloxacin (NOR), levofloxacin (LEV), and moxifloxacin hydrochloride (MXF-HCl)) . After a systematical structure-activity relationship study, MXF modified with a triphenylphosphonium (MXF-P) was successfully prepared with AIE feature and comparable antibacterial activity to MXF (Fig. and), which could be applied for rapid imaging of bacteria.