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Highly luminescent N-doped carbon dots as a fluorescence detecting platform for Fe3+ in solutions and living cells

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Abstract

Iron (Fe3+) is one of the most essential elements in the human body; deficiency or overdose of Fe3+ may have adverse effects on human health and immunity. Hence, it is essential to establish a sensitive and selective method for ion detection. In this study, novel green fluorescent N-doped carbon dots (N-CDs) were prepared with caffeic acid as the carbon source via a simple hydrothermal method. The solution of the as-prepared N-CDs exhibits 21.5% quantum yield, good salt stability, excellent water solubility, low cytotoxicity and good photobleaching resistance. The N-CDs can be used as a fluorescent probe for the detection of Fe3+ ions in aqueous solutions and bioimaging in living cells.

Graphical abstract: Highly luminescent N-doped carbon dots as a fluorescence detecting platform for Fe3+ in solutions and living cells

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Supplementary files

Article information


Submitted
31 Jan 2020
Accepted
10 May 2020
First published
13 May 2020

Analyst, 2020, Advance Article
Article type
Paper

Highly luminescent N-doped carbon dots as a fluorescence detecting platform for Fe3+ in solutions and living cells

H. Deng, C. Tian, Z. Gao, S. Chen, Y. Li, Q. Zhang, R. Yu and J. Wang, Analyst, 2020, Advance Article , DOI: 10.1039/D0AN00208A

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