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Updated: Jun 18, 2026
Fluorescent Nanoparticles for the Measurement of Ion Concentration in Biological Systems
Published on: July 4, 2011
A turn-on fluorescent sensor for detecting nickel in living cells
Sheel C Dodani1, Qiwen He, Christopher J Chang
1Department of Chemistry and the Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA.
None:
We present the synthesis and properties of Nickelsensor-1 (NS1), a new water-soluble, turn-on fluorescent sensor that is capable of selectively responding to Ni(2+) in aqueous solution and in living cells. NS1 combines a BODIPY chromophore and a mixed N/O/S receptor to provide good selectivity for Ni(2+) over a range of biologically abundant metal ions in aqueous solution. In addition to these characteristics, confocal microscopy experiments further show that NS1 can be delivered into living cells and report changes in intracellular Ni(2+) levels in a respiratory cell model.
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