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

Antônio A. Soares-Paulino; Lilian Giroldo; Gizele Celante; Elisabete Oliveira; Sérgio M. Santos; Ricardo F. Mendes; Filipe A. Almeida Paz; Alexandre M. Fioroto; Pedro Vitoriano  Oliveira; Silvia H. P. Serrano; Carlos Lodeiro; Alcindo A. dos Santos

doi:10.1016/j.dyepig.2018.07.055

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

Antônio A. Soares-Paulino, Lilian Giroldo, Gizele Celante, Elisabete Oliveira, Sérgio M. Santos, Ricardo F. Mendes, Filipe A. Almeida Paz, Alexandre M. Fioroto, Pedro Vitoriano Oliveira, Silvia H. P. Serrano, Carlos Lodeiro, Alcindo A. dos Santos

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

A new fluorescent probe based on Tellurium-Rhodamine (TR) was designed, synthetized and fully characterized by ¹H NMR, ¹³C NMR, ¹²⁵Te 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 Φ = 0.41, excellent selectivity and good sensibility towards Hg²⁺, with a limit of detection of 2.95 μmol/L.

Original language	English
Pages (from-to)	208-216
Number of pages	9
Journal	Dyes and Pigments
Volume	160
DOIs	https://doi.org/10.1016/j.dyepig.2018.07.055
Publication status	Published - 1 Jan 2019

Keywords

Fluorescent sensor
Mercury
Naked-eye
Rhodamine
Telluroxide

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Soares-Paulino, A. A., Giroldo, L., Celante, G., Oliveira, E., Santos, S. M., Mendes, R. F., Almeida Paz, F. A., Fioroto, A. M., Oliveira, P. V., Serrano, S. H. P., Lodeiro, C., & Santos, A. A. D. (2019). Oxidation of tellurium dyes induced by mercury: More insights on the naked-eye and fluorescent Hg2+ detection. Dyes and Pigments, 160, 208-216. https://doi.org/10.1016/j.dyepig.2018.07.055

Soares-Paulino, Antônio A. ; Giroldo, Lilian ; Celante, Gizele ; Oliveira, Elisabete ; Santos, Sérgio M. ; Mendes, Ricardo F. ; Almeida Paz, Filipe A. ; Fioroto, Alexandre M. ; Oliveira, Pedro Vitoriano ; Serrano, Silvia H. P. ; Lodeiro, Carlos ; Santos, Alcindo A. dos. / Oxidation of tellurium dyes induced by mercury: More insights on the naked-eye and fluorescent Hg2+ detection. In: Dyes and Pigments. 2019 ; Vol. 160. pp. 208-216.

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

abstract = "A new fluorescent probe based on Tellurium-Rhodamine (TR) was designed, synthetized and fully characterized by 1H NMR, 13C NMR, 125Te 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 Φ = 0.41, excellent selectivity and good sensibility towards Hg2+, with a limit of detection of 2.95 μmol/L.",

keywords = "Fluorescent sensor, Mercury, Naked-eye, Rhodamine, Telluroxide",

author = "Soares-Paulino, {Ant{\^o}nio A.} and Lilian Giroldo and Gizele Celante and Elisabete Oliveira and Santos, {S{\'e}rgio M.} and Mendes, {Ricardo F.} and {Almeida Paz}, {Filipe A.} and Fioroto, {Alexandre M.} and Oliveira, {Pedro Vitoriano} and Serrano, {Silvia H. P.} and Carlos Lodeiro and Santos, {Alcindo A. dos}",

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Oxidation of tellurium dyes induced by mercury: More insights on the naked-eye and fluorescent Hg2+ detection. / Soares-Paulino, Antônio A.; Giroldo, Lilian; Celante, Gizele; Oliveira, Elisabete; Santos, Sérgio M.; Mendes, Ricardo F.; Almeida Paz, Filipe A.; Fioroto, Alexandre M.; Oliveira, Pedro Vitoriano ; Serrano, Silvia H. P.; Lodeiro, Carlos; Santos, Alcindo A. dos.

In: Dyes and Pigments, Vol. 160, 01.01.2019, p. 208-216.

Research output: Contribution to journal › Article

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AU - Soares-Paulino, Antônio A.

AU - Giroldo, Lilian

AU - Celante, Gizele

AU - Oliveira, Elisabete

AU - Santos, Sérgio M.

AU - Mendes, Ricardo F.

AU - Almeida Paz, Filipe A.

AU - Fioroto, Alexandre M.

AU - Oliveira, Pedro Vitoriano

AU - Serrano, Silvia H. P.

AU - Lodeiro, Carlos

AU - Santos, Alcindo A. dos

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KW - Fluorescent sensor

KW - Mercury

KW - Naked-eye

KW - Rhodamine

KW - Telluroxide

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