A dansyl group modified SBA-15 INHIBIT logic gate with [Hg2+ and Cl−] or [Hg2+ and Br−] as inputs

- A novel two-input INHIBIT logic gate (DA-SBA-15) was prepared to detect Hg2+ in aqueous solution.
- DA-SBA-15 based on SBA-15 as support and dansylamide as fluorescent center.
- This material used [Hg2+ and Cl−] or [Hg2+ and Br−] as chemical inputs and the fluorescence intensity signal as output.
- It could rapidly recognize Hg2+ over other metal ions within a broad pH span.
- This material was expected to be operated at the molecular level.