1results about How to "Unique features" patented technology

This invention relates to the field of fluorescence sensing materials technology, specifically to a biporous cationic covalent organic framework material, its preparation method, a ratiometric fluorescent probe, and its applications. The unit cell parameters of the biporous cationic covalent organic framework material are: a = 72.3305 Å, b = 72.3305 Å, c = 3.7877 Å, α = β = 90.000°, γ = 120.000°; its structure is shown in Formula I. This invention utilizes the strong electrostatic interaction between the nanoscale pore wall ion sites of the biporous cationic covalent organic framework material and the charged groups of fluoroquinolone antibiotics, combined with a spatial matching effect, to achieve highly selective recognition of FQs.