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Coupling Selectivity with Sensitivity in an Integrated Chemosensor Framework: Design of a Hg2+-Responsive Probe, Operating above 500 nm
Abstract
For the highly selective and sensitive sensing of Hg2+ in water, a new design concept was realized where the selectivity of the probe's binding site is amplified by electronic properties of the chromophore. The molecular architecture of this phenoxazinone-type sensor molecule combines two potential coordination sites via an amino-keto conjugative backbone. These structural prerequisites allow only the most preferred mercuric ion to bind to the dithia dioxa monoaza crown unit, while other heavy, transition, and main group metal ions as well as protons are trapped at the keto group, inducing opposite spectral effects due to interaction with either the donor (Hg2+) or the acceptor group (other cations) of the probe. Besides these advantageous features, the probe operates well within the visible range of the spectrum and displays rather intense molar absorptivities as well as fluorescence quantum yields.
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Cites
Nile red as a polarity-sensitive fluorescent probe of hydrophobic protein surfaces
Sackett, D. L., & Wolff, J. (1987) · Analytical Biochemistry · doi:10.1016/0003-2697(87)90157-6 · Cited by 591
Cited by
Highly Selective Oligonucleotide‐Based Sensor for Mercury(II) in Aqueous Solutions
Ono, A., & Togashi, H. (2004) · Angewandte Chemie International Edition · doi:10.1002/anie.200454172 · Cited by 1,162
Luminescent sensors and switches in the early 21st century
Callan, J. F., de Silva, A. P., & Magri, D. C. (2005) · Tetrahedron · doi:10.1016/j.tet.2005.05.043 · Cited by 1,123
Screening Mercury Levels in Fish with a Selective Fluorescent Chemosensor
Yoon, S., Albers, A. E., Wong, A. P., & Chang, C. J. (2005) · Journal of the American Chemical Society · doi:10.1021/ja0557987 · Cited by 503
Ros‐Lis, J. V., Marcos, M. D., Mártinez‐Máñez, R., Rurack, K., & Soto, J. (2005) · Angewandte Chemie International Edition · doi:10.1002/anie.200500583 · Cited by 355
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Metadata
- Authors
- Descalzo, A. B., Martínez-Máñez, R., Radeglia, R., Rurack, K., & Soto, J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-02-27
- Volume
- 125
- Issue
- 12
- Pages
- 3418-3419
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1971518546
- Cited by
- 309
- References
- 1
- FWCI
- 9.99
- Type
- journal article
- Language
- en
- Open access
- closed
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- Descalzo, A. B., Martínez-Máñez, R., Radeglia, R., Rurack, K., & Soto, J. (2003). Coupling Selectivity with Sensitivity in an Integrated Chemosensor Framework: Design of a Hg2+-Responsive Probe, Operating above 500 nm. Journal of the American Chemical Society. https://doi.org/10.1021/ja0290779
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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