A dual detecting polymeric sensor: chromogenic naked eye detection of silver and ratiometric fluorescent detection of manganese

Narinder Singh, Navneet Kaur, Catriona Ni Choitir, John F. Callan

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Polymer 1, a poly(olefin) with pendant Schiff base units is prepared by reacting poly(allylamine) and 2-hydroxynapthaldehyde in methanol. The optical properties of 1 are investigated in THF:H2O (9:1) solvent system buffered at pH 7.0 +/- 0.1 using HEPES. When tested against a range of physiological and environmentally relevant cations 1 displays selectivity for Ag+ from changes in the UV-vis spectra with linearity established in the range of 10-60 mu M. The addition of Ag+ to a solution of 1 also causes a colour change from colourless to dark yellow meaning Ag+ is also detectable by the naked eye. In contrast, selectivity is observed for Mn2+ from changes in the emission spectra again with good linearity observed in the range of 0-50 nM. This is the first reported polymeric sensor capable of detecting both Ag+ and Mn2+ using two different detection modes. (C) 2009 Elsevier Ltd. All rights reserved.
LanguageEnglish
Pages4201-4204
JournalTetrahedron Letters
Volume50
Issue number29
DOIs
Publication statusPublished - Jul 2009

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Allylamine
Chromogenics
HEPES
Schiff Bases
Alkenes
Manganese
Silver
Methanol
Cations
Polymers
Optical properties
Display devices
Color
Sensors

Cite this

Singh, Narinder ; Kaur, Navneet ; Choitir, Catriona Ni ; Callan, John F. / A dual detecting polymeric sensor: chromogenic naked eye detection of silver and ratiometric fluorescent detection of manganese. 2009 ; Vol. 50, No. 29. pp. 4201-4204.
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A dual detecting polymeric sensor: chromogenic naked eye detection of silver and ratiometric fluorescent detection of manganese. / Singh, Narinder; Kaur, Navneet; Choitir, Catriona Ni; Callan, John F.

Vol. 50, No. 29, 07.2009, p. 4201-4204.

Research output: Contribution to journalArticle

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