Ion-Exchange and Supramolecular Chemistry (1) Development of Ion-Recognition Probes Based on Supramolecular Assembly

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Molecular recognition based on self-assembly exists widely in the biological systems such as double helix formation of DNA and DNA-protein interaction. By mimicking these supramolecular functions, the development of various artificial receptors is expected for design of chemical sensing systems. In this paper, recent progresses in the design of ionrecognition probes are reviewed based on two types of molecular design concepts: one is "molecular built-up" probes, in which ion recognition is achieved by a single molecular receptor function. The other is "molecular assembled" probes, which are based on a supramolecular interaction derived from probe molecules such as (1) self-assembly by molecular stacking, (2) G-quartet assembly by oligonucleoside derivatives, (3) dispersion and aggregation of nanoparticles, and (4) supramolecular assembly by cyclodextrin and surfactant complexes. For these probes, the principles of response mechanisms upon ion recognition are summarized.
日本イオン交換学会の論文