Royal Society of Chemistry, Chemical Communications, 64(48), p. 7955, 2012
DOI: 10.1039/c2cc33869f
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Carbon nanodots (CDs) with a low cytotoxicity have been synthesized by one-step microwave-assisted pyrolysis of citric acid in the presence of various amine molecules. The primary amine molecules have been confirmed to serve dual roles as N-doping precursors and surface passivation agents, both of which considerably enhanced the fluorescence of the CDs.