Issue 14, 2013

Ratiometric fluorescence sensing and intracellular imaging of Al3+ ions driven by an intramolecular excimer formation of a pyrimidine–pyrene scaffold

Abstract

An Al3+ selective ratiometric fluorescent probe (L) has been synthesized by condensation of 4,5-diaminopyrimidine with 1-pyrenecarboxaldehyde. The structure of L has been confirmed by single crystal X-ray analysis. In the presence of Al3+, L exhibits a considerable excimer emission at 445 nm along with the decrease of its monomer emission at 368 nm in DMSOH2O (4 : 1, v/v). The lowest detection limit for Al3+ is 0.24 μM. Furthermore, L can permeate through the cell membrane and detects intracellular Al3+ ions under a fluorescence microscope.

Graphical abstract: Ratiometric fluorescence sensing and intracellular imaging of Al3+ ions driven by an intramolecular excimer formation of a pyrimidine–pyrene scaffold

Supplementary files

Article information

Article type
Communication
Submitted
04 Dec 2012
Accepted
31 Jan 2013
First published
04 Feb 2013

Dalton Trans., 2013,42, 4757-4763

Ratiometric fluorescence sensing and intracellular imaging of Al3+ ions driven by an intramolecular excimer formation of a pyrimidine–pyrene scaffold

S. Das, A. Sahana, A. Banerjee, S. Lohar, D. A. Safin, M. G. Babashkina, M. Bolte, Y. Garcia, I. Hauli, S. K. Mukhopadhyay and D. Das, Dalton Trans., 2013, 42, 4757 DOI: 10.1039/C3DT32908A

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