A novel anion sensor array based on supramolecular metallogels has been developed. It could accurately identify CN(-), SCN(-), S(2-) and I(-) in water. Interestingly, this sensor array is based on a novel design approach termed "competitive coordination control AIE mode" to develop anion-responsive gels which need only one synthesized gelator G1.
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Lin et al. (2014) studied this question.
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