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Amide based probes containing phenyl ( L1 ), naphthyl ( L2 ) and anthracenyl ( L3 ) groups were screened towards metal ions. Probes L2 and L3 display sensing for Fe ²⁺ and Fe ³⁺ ions. The L3 –Fe ³⁺ system is shown to have potential applications in logic gates and cell imaging.
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Kumar et al. (2015) studied this question.
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