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Issue 18, 2019

Highly selective chromoionophores for ratiometric Na+ sensing based on an oligoethyleneglycol bridged bithiophene detection unit

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Abstract

Rapid and efficient measurement of sodium ion concentrations will benefit future studies and healthcare due to the importance of sodium to many biological processes. Ratiometric optical probes, where light absorption wavelengths shift according to ion concentration, can be used as a quick measurement method. In contrast to the currently available UV absorbing probes, we have synthesised a series of sensors which absorb in different regions of the visible spectrum. In addition to measurement by conventional UV-Vis spectroscopy, this also enables analysis of sodium ion concentration from colorimetry, opening the door to faster and cheaper analysis. Finally, the optical properties of the dyes were well reproduced by computational methods, with and without the presence of sodium, enabling acceleration of design of future materials.

Graphical abstract: Highly selective chromoionophores for ratiometric Na+ sensing based on an oligoethyleneglycol bridged bithiophene detection unit

Supplementary files

Article information


Submitted
28 Nov 2018
Accepted
10 Apr 2019
First published
16 Apr 2019

J. Mater. Chem. C, 2019,7, 5359-5365
Article type
Communication

Highly selective chromoionophores for ratiometric Na+ sensing based on an oligoethyleneglycol bridged bithiophene detection unit

M. Moser, K. J. Thorley, F. Moruzzi, J. F. Ponder, I. P. Maria, A. Giovannitti, S. Inal and I. McCulloch, J. Mater. Chem. C, 2019, 7, 5359 DOI: 10.1039/C8TC06000B

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