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Issue 79, 2014
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A novel pyrene-2-(pyridin-2-ylmethylsulfanyl)ethylamine based turn-on dual sensor for Al3+: experimental and computational studies

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Abstract

A new pyrene based highly sensitive and selective Al3+ sensor, pyrene-2-(pyridin-2-ylmethylsulfanyl)-ethylamine (PP), was found to exhibit a turn-on fluorescence enhancement (FE) as high as 7.4 fold with Kd (2.55 ± 0.10) × 10−4 M and n = 1. This probe binds reversibly with Al3+ in the presence of H2EDTA2−, both under intra- and exctracellular conditions. LOD determined by 3σ methods was found to be 15 nM while LOQ = 52.8 nM. The tentative coordination environment in the Al3+PP complex was delineated by DFT calculations both on the free ligand and complex. The TDDFT calculations reveal spectral features comparable to the experimental ones.

Graphical abstract: A novel pyrene-2-(pyridin-2-ylmethylsulfanyl)ethylamine based turn-on dual sensor for Al3+: experimental and computational studies

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Publication details

The article was received on 20 Jun 2014, accepted on 14 Aug 2014 and first published on 14 Aug 2014


Article type: Paper
DOI: 10.1039/C4RA06018K
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RSC Adv., 2014,4, 41784-41792

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    A novel pyrene-2-(pyridin-2-ylmethylsulfanyl)ethylamine based turn-on dual sensor for Al3+: experimental and computational studies

    R. Bhowmick, M. Dolai, R. Alam, T. Mistri, A. Katarkar, K. Chaudhuri and M. Ali, RSC Adv., 2014, 4, 41784
    DOI: 10.1039/C4RA06018K

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