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Issue 37, 2019

Selective catecholamine detection in living cells by a copper-mediated oxidative bond cleavage

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Abstract

The development of a new triggered-release system for selective detection of catecholamines in biological samples including living cells is reported. Catecholamines are a class of tightly regulated hormones and neurotransmitters in the human body and their dysregulation is implicated in various neurodegenerative diseases. It is highly challenging to selectively sense and detect catecholamines in a complex biological environment due to their small size, non-specific molecular shape and trivial chemical properties. In this study, a copper-based, catecholamine-triggered oxidation that releases a fluorescent reporter is described. The probe is highly sensitive and selective for detecting changes in catecholamine levels in aqueous buffer, human plasma, and cellular models of neuronal differentiation and Parkinson's disease. This new catecholamine sensing strategy features chemical reactivity as part of small molecule recognition as opposed to the conventional use of a well-designed host for reversible binding.

Graphical abstract: Selective catecholamine detection in living cells by a copper-mediated oxidative bond cleavage

Supplementary files

Article information


Submitted
05 Jul 2019
Accepted
10 Aug 2019
First published
14 Aug 2019

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2019,10, 8519-8526
Article type
Edge Article

Selective catecholamine detection in living cells by a copper-mediated oxidative bond cleavage

K. Y. Tong, J. Zhao, C. Tse, P. Wan, J. Rong and H. Y. Au-Yeung, Chem. Sci., 2019, 10, 8519 DOI: 10.1039/C9SC03338F

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