Jump to main content
Jump to site search


Specific recognition of Cr3+ under physiological conditions by allyl substituted appendage rhodamine and its cell-imaging studies

Author affiliations

Abstract

An allyloxynitrophenylimio-propylhydroxyl appended rhodamine (RD-3) specifically recognises Cr3+ in aqueous buffer medium at pH 7.4. The visible light excitable reagent (λex 505 nm) on selective binding to Cr3+ exhibited a strong fluorescence turn-on response with powerful emission at 557 nm and the tail of this luminescence band is extended to ∼650 nm. Interference studies confirm that other metal ions (27 ions) do not hamper the detection process of Cr3+. The sensing mechanism is studied by absorption, fluorescence, Job's plot, and 1H NMR titration studies. The detection limit is as low as 33 nM. The practical applicability of RD-3 is examined for imaging Cr(III) ions in HCT116 (human colorectal carcinoma) cells.

Graphical abstract: Specific recognition of Cr3+ under physiological conditions by allyl substituted appendage rhodamine and its cell-imaging studies

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Sep 2017, accepted on 06 Nov 2017 and first published on 06 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03560H
Citation: Dalton Trans., 2017, Advance Article
  •   Request permissions

    Specific recognition of Cr3+ under physiological conditions by allyl substituted appendage rhodamine and its cell-imaging studies

    A. K. Bhanja, S. Mishra, K. Naskar, S. Maity, K. Das Saha and C. Sinha, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT03560H

Search articles by author

Spotlight

Advertisements