Journal
NEW JOURNAL OF CHEMISTRY
Volume 39, Issue 5, Pages 3507-3512Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj02381a
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- UGC, New Delhi
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A novel fluorescent chemosensor based on fluorescent organic nanoparticles (F1) has been synthesized. This tripodal framework shows significant fluorescence quenching for Fe3+ ions from among nineteen metal ions due to the formation of a F-1.Fe3+ complex. The lowest detectable concentration of F1 for Fe3+ ions was found to be 1.66 mM. Upon the addition of spermidine (a biologically active amine), the fluorescence intensity of the aqueous solution of complex increases with a detection limit of 3.68 mM indicating that spermidine can displace Fe3+ ions from the F-1.Fe3+ complex. Moreover, the recognition of spermidine was selective with no interference from other biogenic amines studied. Thus, F-1.Fe3+ acts as a potential sensor for spermidine through a cation displacement assay in aqueous media.
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