NDLI: Xanthurenic acid: a natural ionophore with high selectivity and sensitivity for potassium ions in an aqueous solution

Content Provider	Semantic Scholar
Author	Raju, Mohan Doraiswamy Patel, Tapasya J. Nair, Ratish R. Chatterjee, Pabitra Baran
Copyright Year	2016
Abstract	Xanthurenic acid (H3L), a simple natural molecule and a well known tryptophan metabolite involved in the biosynthesis of quinolobactin siderophore, was developed as an efficient “turn-on” fluorosensor for potassium ions in aqueous HEPES buffer solutions. The natural ionophore, H3L, showed high selectivity for K+ at physiological pH and in the context of interference from other competing metal ions, particularly Na+, the specific response of H3L towards K+ did not change. The detection limit was found to be 53 nM. This study demonstrates the first example in which a non-cyclic system bearing monocarboxylate functionality was used as an efficient fluorosensor for the detection of K+ in water.
Starting Page	1930
Ending Page	1934
Page Count	5
File Format	PDF HTM / HTML
DOI	10.1039/C5NJ02540K
Alternate Webpage(s)	http://www.rsc.org/suppdata/c5/nj/c5nj02540k/c5nj02540k1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C5NJ02540K
Volume Number	40
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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