Year: 2024
Type: article
Abstract: A networked supramolecular logic AND gate system is accomplished using precise chemical communication within a multicomponent ensemble via metal ion‐driven self‐sorting processes. The cybernetic AND gate is composed of a copper(I)‐loaded nanoswitch, an aza‐crown ether and a rhodamine receptor. The modus operandi of the AND gate, from state (0,0), was induced with stoichiometric amounts of two inputs ( IN‐1 =Hg 2+ , IN‐2 =Li + ) generating copper(I) ions as output only in state (1,1). Generation of state (1,1) from state (0,0) involves selective Cu + ion translocation from the nanoswitch to the aza‐crown ether in the first step ( IN‐1 ) and then from the aza‐crown ether to the rhodamine receptor in the second step ( IN‐2 ). The released copper(I) output acts as a messenger that binds to the rhodamine receptor, triggering it's spiro‐lactam ring opening, which leads to a diagnostic FRET emission from the copper(I)‐loaded rhodamine scaffold accompanied by a remarkable fluorescence and colour change from pale yellow to pink.
Source: Chemistry - A European Journal
Institutions: University of Siegen, Ludwig-Maximilians-Universität München
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4403479335