Cysteine-based fluorescence “turn-on” sensors for Cu2+ and Ag+

V. Haridas; P. P. Praveen Kumar; Cherumuttathu H. Suresh

doi:10.1039/C4RA10936H

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Cysteine-based fluorescence “turn-on” sensors for Cu²⁺ and Ag⁺†

V. Haridas,*^a P. P. Praveen Kumar^a and Cherumuttathu H. Suresh^b

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas-110016, New Delhi, India
E-mail: h-haridas@hotmail.com, haridasv@iitd.ac.in
Tel: +91-11-26591380

^b Inorganic and Theoretical Chemistry Section, CSTD, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram – 695019, India

Abstract

We designed and synthesized two metal ion binding molecules 3a and 3b based on cysteine. In 3a, pyrene is used as a fluorescent probe, while 3b contains tryptophan, which acts as a fluorescent probe as well as facilitates metal ion binding. Detailed spectroscopic, calorimetric, microscopic and computational studies revealed the binding mode and the plausible structures of the complexes.

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Article information

DOI: https://doi.org/10.1039/C4RA10936H
Article type: Communication
Submitted: 22 Sep 2014
Accepted: 23 Oct 2014
First published: 24 Oct 2014

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RSC Adv., 2014,4, 56539-56542

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Cysteine-based fluorescence “turn-on” sensors for Cu²⁺ and Ag⁺

V. Haridas, P. P. Praveen Kumar and C. H. Suresh, RSC Adv., 2014, 4, 56539 DOI: 10.1039/C4RA10936H

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