Kaichao Wang

1. Introduction With continuous economic and social development, the decoration styles, usage functions, and structural performances of existing buildings are increasingly unable to satisfy the needs of modern individuals. Meanwhile, the demolition and reconstruction of these buildings lead to a significant waste of resources. Therefore, the reinforcement and retrofit upgrading of existing buildings has gradually become a development trend in the construction industry.

Introduction Isoguanosine (isoG), an isomer of guanosine (G), has amino and carbonyl groups transposed relative to G. Cherbulize and Bernhard1 originally isolated isoG from croton beans, and Davoll2 subsequently synthesized it. It is widely applied in ionophores, genetics, gel formation, and cancer therapy based on its unique structure and base-pairing pattern (Figure 1).