Two DNA conjugates modified with ethylenediaminetetraacetic acid and 1,10-phenanthroline were prepared as a pair of split probes. They were designed to form a duplex with their auxiliary groups facing each other, providing a microenvironment to accommodate lanthanide ions. The luminescent signal was amplified by catalytic duplex formation based on an entropy-driven DNA circuit.
Y. Kitamura, Y. Azuma, Y. Katsuda and T. Ihara, Chem. Commun., 2020, 56, 3863 DOI: 10.1039/D0CC00602E
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