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Issue 25, 2014
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One-pot green synthesis of water-soluble carbon nanodots with multicolor photoluminescence from polyethylene glycol

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Abstract

Water-soluble fluorescent carbon nanodots (CNDs) were fabricated directly from polyethylene glycol (PEG) by a simple one-pot thermal treatment. In the formation of such CNDs, PEG played two essential roles: the carbon source and surface passivating agent. CNDs were used directly without any additional separation or purification procedure and yet have a comparable quantum yield with self-surface passivation CNDs or passivation-absent ones. The products were shown to be soluble in water and common organic solvents, and emitted bright multicolor fluorescence with excitation and pH dependent emission properties. The extensive characterization results likewise gave an insight into the formation and the luminescence mechanism of the CNDs. Cytotoxicity tests and cellular uptake experiments of the CNDs further demonstrated their viability in biochemical applications.

Graphical abstract: One-pot green synthesis of water-soluble carbon nanodots with multicolor photoluminescence from polyethylene glycol

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Publication details

The article was received on 21 Feb 2014, accepted on 16 Mar 2014 and first published on 18 Mar 2014


Article type: Paper
DOI: 10.1039/C4TB00292J
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Citation: J. Mater. Chem. B, 2014,2, 3937-3945

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    One-pot green synthesis of water-soluble carbon nanodots with multicolor photoluminescence from polyethylene glycol

    M. Chen, W. Wang and X. Wu, J. Mater. Chem. B, 2014, 2, 3937
    DOI: 10.1039/C4TB00292J

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