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Int. J. Mol. Sci. 2012, 13(12), 16822-16832; doi:10.3390/ijms131216822
Article

Turn-On Fluorescent Chemosensor for Hg2+ Based on Multivalent Rhodamine Ligands

1,2
, 1,3
, 1
 and 1,*
Received: 22 November 2012; Accepted: 4 December 2012 / Published: 7 December 2012
(This article belongs to the Special Issue Molecular Self-Assembly 2012)
View Full-Text   |   Download PDF [1357 KB, uploaded 19 June 2014]   |   Browse Figures
Abstract: Rhodamine-based fluorescent chemosensors 1 and 2 exhibit selective fluorescence enhancement to Fe3+ and Hg2+ over other metal ions at 580 nm in CH3CN/H2O (3/1, v/v) solution. Bis(rhodamine) chemosensor 1, under optimized conditions (CH3CN/HEPES buffer (0.02 M, pH = 7.0) (95/5, v/v)), shows a high selectivity and sensitivity to Hg2+, with a linear working range of 0–50 μM, a wide pH span of 4–10, and a detection limit of 0.4 μM Hg2+.
Keywords: rhodamine; mercury; chemosensor; fluorescence rhodamine; mercury; chemosensor; fluorescence
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, X.; Iqbal, M.; Huskens, J.; Verboom, W. Turn-On Fluorescent Chemosensor for Hg2+ Based on Multivalent Rhodamine Ligands. Int. J. Mol. Sci. 2012, 13, 16822-16832.

AMA Style

Wang X, Iqbal M, Huskens J, Verboom W. Turn-On Fluorescent Chemosensor for Hg2+ Based on Multivalent Rhodamine Ligands. International Journal of Molecular Sciences. 2012; 13(12):16822-16832.

Chicago/Turabian Style

Wang, Xuemei; Iqbal, Mudassir; Huskens, Jurriaan; Verboom, Willem. 2012. "Turn-On Fluorescent Chemosensor for Hg2+ Based on Multivalent Rhodamine Ligands." Int. J. Mol. Sci. 13, no. 12: 16822-16832.


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