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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Oxidation of tellurium dyes induced by mercury: More insights on the naked-eye and fluorescent Hg2+ detection

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Author(s):
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Soares-Paulino, Antonio A. [1, 2] ; Giroldo, Lilian [1] ; Celante, Gizele [1] ; Oliveira, Elisabete [3, 2] ; Santos, Sergio M. [4, 5] ; Mendes, Ricardo F. [4, 5] ; Paz, Filipe A. Almeida [4, 5] ; Fioroto, Alexandre M. [1] ; Oliveira, V, Pedro ; Serrano, Silvia H. P. [6] ; Lodeiro, Carlos [3, 2] ; Dos Santos, Alcindo A. [6]
Total Authors: 12
Affiliation:
[1] Univ Sao Paulo, Inst Chem, Dept Fundamental Chem, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Quim, LAQV REQUIMTE, BIOSCOPE Grp, P-2829516 Lisbon - Portugal
[3] Proteomass Sci Soc, Rua Inventores, Madan Pk, P-2829516 Caparica - Portugal
[4] Univ Aveiro, Dept Chem, Campus Santiago, P-3810193 Aveiro - Portugal
[5] Univ Aveiro, CICECO, Campus Santiago, P-3810193 Aveiro - Portugal
[6] Oliveira, Pedro, V, Univ Sao Paulo, Inst Chem, Dept Fundamental Chem, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
Total Affiliations: 6
Document type: Journal article
Source: DYES AND PIGMENTS; v. 160, p. 208-216, JAN 2019.
Web of Science Citations: 2
Abstract

A new fluorescent probe based on Tellurium-Rhodamine (TR) was designed, synthetized and fully characterized by H-1 NMR, C-13 NMR, Te-125 NMR, HRMS, IR and single crystal X-ray diffraction. A mechanism of Hg2+ detection, based on the oxidation of tellurium by Hg2+ was observed and fully understood. The new monomer chemosensor TR shows a high fluorescent quantum yield Phi = 0.41, excellent selectivity and good sensibility towards Hg2+, with a limit of detection of 2.95 mu mol/L. (AU)

FAPESP's process: 16/09579-0 - Synthesis of Organic Selenides and Tellurides for Detection and Interception of Endogenous Oxidants
Grantee:Alcindo Aparecido dos Santos
Support type: Regular Research Grants