In summary, a simple and naked-eye available analytical
method has been demonstrated for aliphatic diamines determination
based on the host–guest interaction between CCE4 macrocycles
and amine groups. The method not only has low instrumental
demands, but also has advantage of facile and one-pot
approach for the synthesis of CCE4 capped AuNPs by the design
under DMSO conditions. This very simple synthesis method might
also be expanded to other macrocycles.