fig12
Figure 12. (A) The facile preparation of nano TP-CC3-R and the mechanism for fluorescence sensing of copper ion. Reproduced with permission[71], Copyright 2021, Elsevier B.V; (B) Benzothiazole-based [2+3] cages for Cd2+ detection. Reproduced[87], Open access, MDPI; (C) The porphyrin-based organic cage for Cu2+ sensing. Reproduced with permission[116], Copyright 2022, Elsevier B.V.
