A naphthalene-based Al3+ selective fluorescent sensor for living cell imaging
Top Cited Papers
- 21 June 2011
- journal article
- Published by Royal Society of Chemistry (RSC) in Organic & Biomolecular Chemistry
- Vol. 9 (15), 5523-5529
- https://doi.org/10.1039/c1ob05479a
Abstract
An efficient fluorescent Al3+ receptor, N-(2-hydroxy-1-naphthalene)-N′-(2-(2-hydroxy-1-naphthalene)amino-ethyl)-ethane-1,2-diamine (L) has been synthesized by the condensation reaction between 2-hydroxy naphthaldehyde and diethylenetriamine. High selectivity and affinity of L towards Al3+ in ethanol (EtOH) as well as in HEPES buffer at pH 7.4, makes it suitable to detect intracellular Al3+ with fluorescence microscopy. Metal ions, viz.Li+, Na+, K+, Mg2+, Ca2+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Ag+, Cd2+, Hg2+ and Pb2+ do not interfere. The lowest detection limit for Al3+ is 3.0 × 10−7 M and 1.0 × 10−7 M in EtOH and HEPES buffer respectively.Keywords
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