“…Afterward, the aqueous solutions containing various metal ions Ms (M = Tb 3+ , La 3+ , Ce 3+ , Eu 3+ and Th 4+ , 1.0 M, 278.5 μL) were added into WCB-α-CD . Meanwhile, after addition of different rare metal ions, any changes in the gel of WCB-α-CD@Ms were measured by a Rheolaser Lab Diffusing Wave Spectroscopy instrument. , Using the software Rheosoft Master 1.4.0.1, the obtained data were analyzed and demonstrated as mean square displacement (MSD), solid–liquid balance (SLB) value, elasticity index (EI), elastic modulus G’, and viscosity modulus G”.…”