Abstract
A rationally designed chemosensor L1 (2-(2-amino-4,5-dihydrothiazol-4-yl)-5,5-dimethylcyclohexane-1,3-dione) is capable for the detection of biologically important Cu2+ and Fe3+ ions. The observable change in absorbance and emission in HEPES buffer solution and binding parameters display notable sensing ability of Cu2+ and Fe3+ ions. From Job’s plot and ESI-MS spectra, 1:1 stoichiometric complexation with Cu2+ and Fe3+ ions have been established. The chemosensor was also utilized to develop logic gate by reversibility cycles for Fe3+ ion by EDTA. In addition, complex formation between the receptor and Cu2+/Fe3+ ion was investigated by spectroscopically and computational studies. The cell imaging study indicated that L1 is highly efficient for the detection of Fe3+ ion in live cells. The simple synthetic route, multi-stimuli response, regenerative action and solution visualization of the proposed chemosensor potentially make it as excellent sensor for real samples.
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