Issue 5, 2015

Selective chemosensing of spermidine based on fluorescent organic nanoparticles in aqueous media via a Fe3+ displacement assay

Abstract

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 F1·Fe3+ complex. The lowest detectable concentration of F1 for Fe3+ ions was found to be 1.66 μM. 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 μM indicating that spermidine can displace Fe3+ ions from the F1·Fe3+ complex. Moreover, the recognition of spermidine was selective with no interference from other biogenic amines studied. Thus, F1·Fe3+ acts as a potential sensor for spermidine through a cation displacement assay in aqueous media.

Graphical abstract: Selective chemosensing of spermidine based on fluorescent organic nanoparticles in aqueous media via a Fe3+ displacement assay

Supplementary files

Article information

Article type
Paper
Submitted
23 Dec 2014
Accepted
10 Feb 2015
First published
11 Feb 2015

New J. Chem., 2015,39, 3507-3512

Selective chemosensing of spermidine based on fluorescent organic nanoparticles in aqueous media via a Fe3+ displacement assay

S. Chopra, J. Singh, H. Kaur, H. Singh, N. Singh and N. Kaur, New J. Chem., 2015, 39, 3507 DOI: 10.1039/C4NJ02381A

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