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In this work, a simple and sensitive electrochemical strategy for arsenite detection based on the ability of arsenite bound to single-strand DNA (ssDNA) and the signal transduction of single wall carbon nanotubes (SWCNTs) is developed. To realize this purpose, the ssDNA/SWCNTs complexes were formed at first by making ssDNA wrapped around SWCNTs via π-stacking. In the presence of arsenite, the arsenite...
DNA hairpin-based fluorescent probes (DHFPs) are widely used in molecular biology, biosensor development, mRNA monitoring in living cells and imaging in vivo. In this review, we focus on the typical designs and the recent bioanalytical applications of DHFPs. We describe the application of different materials with excellent photophysical properties as signal labels to reduce the background and to increase...
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