A new and efficient chemodosimeter for ferric ions has been developed. The visual and fluorescent behaviors of the compound toward various metal ions were investigated: ferric ions are distinguished from other cations by selective color change and unusual fluorescence enhancement in mixed aqueous solution. Fluorescence microscopy experiments showed that this receptor is effective for detection of Fe(3+) in vitro, developing a good image of the biological organelles. The sensing mechanism is shown to involve a hydrolysis process.
An efficient colorimetric and fluorescent chemodosimeter for Fe3+ ions has been developed. The visual and fluorescent behaviors of the receptor toward various metal ions were investigated. The receptor shows exclusive response toward Fe3+ ions and also distinguishes Fe3+ from other cations by color change and unusual fluorescence enhancement in aqueous solution (DMSO/H2O = 4/1, v/v). Thus, the receptor can be used as a colorimetric and fluorescent sensor for the determination of Fe3+ ion. The visual color detection limit and the fluorescence detection limit of the receptor towards Fe3+ are (1.42 ± 0.01) × 10‐6 M and (7.57 ± 0.04) × 10‐8 M, respectively. The fluorescence microscopy experiments showed that the receptor is efficient for detection of Fe3+ in vitro, developing a good image of the biological organelles. The sensing mechanism is proven to be a hydrolysis process
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