A label-free and colorimetric turn-on assay for coralyne based on coralyne-induced formation of peroxidase-mimicking split DNAzymeElectronic supplementary information (ESI) available: Detailed experimental procedures and results. See DOI: 10.1039/c3an01024d

A simple, label-free and colorimetric method for coralyne detection was successfully established based on the coralyne-induced formation of split G-quadruplex-hemin DNAzyme. It can achieve a detection limit of 31 nM toward coralyne with excellent selectivity. A simple, label-free and colorimetric method for coralyne detection was successfully established based on the coralyne-induced formation of split G-quadruplex-hemin DNAzyme.