*2.5. Cotton Fabric Functionalization with ACR and [Cu2(ACR)(NO3)2]*

0.005 g of each dendrimer was dissolved in 5 mL of a N,N-dimethylformamide(DMF)–water 1:4 (*v*/*v*) solution. The cotton fabric sample (1 g) (weight 140 g m<sup>−</sup>2) was immersed into the solution at 25 ◦C for 30 min, washed with water and dried at ambient temperature. The dyed cotton fabric is yellow in color and resistant to water treatment. In this case, the fixation of the dendrimer on the surface of the textile material is accomplished by van der Waals forces and possible hydrogen bonds between hydroxyl groups from the cellulose structure and tertiary nitrogen atoms from the dendrimer molecule.
