Highly stable ionic liquid-in-water emulsions as a new class of fluorescent sensors for metal ions: the case study of Fe3+ sensing

Alexandre Bettoschi; Andrea Bencini; Debora Berti; Claudia Caltagirone; Luca Conti; Davide Demurtas; Claudia Giorgi; Francesco Isaia; Vito Lippolis; Marianna Mamusa; Sergio Murgia

doi:10.1039/C5RA05055C

Highly stable ionic liquid-in-water emulsions as a new class of fluorescent sensors for metal ions: the case study of Fe³⁺ sensing†

Alexandre Bettoschi,^a Andrea Bencini,^b Debora Berti,^b Claudia Caltagirone,*^a Luca Conti,^b Davide Demurtas,^c Claudia Giorgi,^b Francesco Isaia,^a Vito Lippolis,^a Marianna Mamusa^b and Sergio Murgia*^a

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^a Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 Bivio per Sestu, 09042 Monserrato, CA, Italy
E-mail: ccaltagirone@unica.it

^b Dipartimento di Chimica “Ugo Schiff”, Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy

^c Interdisciplinary Center for Electron Microscopy, Ecole Fédérale de Lausanne, Station 12, 1015-Lausanne, Switzerland

Abstract

The first example of a fluorescent highly stable pure binary ionic liquid (IL)-in-water emulsion is here described. The system is inexpensive, easy to synthesize and can be used as a selective fluorescent probe for metal ions. In particular, the system is able to recognize Fe³⁺ ions in pure water by a fluorescence “turn-off” mechanism.

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Highly stable ionic liquid-in-water emulsions as a new class of fluorescent sensors for metal ions: the case study of Fe³⁺ sensing†

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Highly stable ionic liquid-in-water emulsions as a new class of fluorescent sensors for metal ions: the case study of Fe³⁺ sensing

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