4.7 Article

A Rhodamine-Based Hg2+ Sensor with High Selectivity and Sensitivity in Aqueous Solution: A NS2-Containing Receptor

Journal

JOURNAL OF ORGANIC CHEMISTRY
Volume 74, Issue 5, Pages 2167-2170

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jo802297x

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Funding

  1. National Natural Science Foundation of China [20536010, 20746003]
  2. Program of Shanghai Subject Chief Scientist and Shanghai Leading Academic Discipline Project [13507]
  3. National High Technology Research and Development Program of China [2006AA10A201]

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A rhodamine-based sensor 1 was designed and synthesized by in corporation the rhodamine fluorophore and ionophore NS2 with high affinity to Hg2+. Sensor 1 exhibits a high selectivity and an excellent sensitivity and is a dual-responsive colorimetric and fluorescent Hg2+-specific sensor in aqueous buffer solution. In addition, the 1:1 binding mode was proposed based on the H-1 NMR and ES(+)MS studies.

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