Hetero-oligophenylene-Based AIEE Material as a Multiple Probe for Biomolecules and Metal Ions to Construct Logic Circuits: Application in Bioelectronics and Chemionics

New hetero‐oligophenylene derivative (2) was synthesized which exhibits aggregation‐induced emission enhancement (AIEE) in H2O/THF (80:20). The aggregates serve as a biological probe for three different proteins, that is bovine serum albumin (BSA), cytochrome c, and lysozyme, and DNA in contrasting modes. Further, among 29 metal ions tested, the contrasting fluorescence behavior of aggregates of 2 is observed with only Pb2+ and Pd2+ ions. Multiple output logic circuits based upon the fluorescence behavior between BSA and cytochrome c and between Pb2+ and Pd2+ ions are constructed. A propeller‐shaped hetero‐oligophenylene derivative, which exhibits aggregation‐induced emission enhancement in H2O/THF (80:20) was synthesized. The aggregates serve as a biological probe for three different proteins (bovine serum albumin (BSA), cytochrome c, and lysozyme), DNA, and two metal ions (Pb2+ and Pd2+) in contrasting modes. The fluorescence behavior between BSA and cytochrome c and between Pb2+ and Pd2+ ions mimics the performance of combinatorial logic circuits.