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  • Title: Fluorescent sodium ion indicators based on the 1,7-diaza-15-crown-5 system.
    Author: Martin VV, Rothe A, Diwu Z, Gee KR.
    Journal: Bioorg Med Chem Lett; 2004 Nov 01; 14(21):5313-6. PubMed ID: 15454218.
    Abstract:
    A series of novel sodium ion-sensitive fluorescent reagents suitable for biological applications is described. The chelator nitrogen atom substituents affect the selectivity and affinity of cation binding, while the nature of the fluorophore determines the type of fluorescent response to metal ion chelation.
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