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  • Title: A simple and label-free sensor for mercury(II) detection in aqueous solution by malachite green based on a resonance scattering spectral assay.
    Author: Wu Y, Zhan S, Xu L, Shi W, Xi T, Zhan X, Zhou P.
    Journal: Chem Commun (Camb); 2011 Jun 07; 47(21):6027-9. PubMed ID: 21559531.
    Abstract:
    Mercury ions (Hg(2+)) can specifically interact with the thymine-rich Hg(2+) aptamer and malachite green (MG) to form the Hg(2+) aptamer-MG-Hg(2+) complex, inducing the increase of resonance scattering (RS) intensity at 611 nm, which enables the label-free detection of Hg(2+) in aqueous solution with high selectivity and a detection limit of 1.7 nM.
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