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Split Hybridization Probe Utilizing a DNA Fluorescent Light-up Aptamer as a Signal Reporter for Sequence-Specific Nucleic Acid Analysis
Published on: July 8, 2025
A highly selective G-quadruplex-based luminescent switch-on probe for the detection of gene deletion
Hong-Zhang He1, Daniel Shiu-Hin Chan, Chung-Hang Leung
1Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
Abstract:
A G-quadruplex-based switch-on luminescence assay has been developed for the detection of gene deletion using a cyclometallated iridium(III) complex as a G-quadruplex-selective probe. Upon hybridization with the target DNA, the two split G-quadruplex-forming sequences assemble into a split G-quadruplex, which greatly enhances the luminescence emission of the iridium(III) probe. The assay is simple and highly selective.
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