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Highly photoluminescent and temperature-sensitive P, N, B-co-doped carbon quantum dots and their highly sensitive recognition for curcumin.

ABSTRACT: Water-soluble P, N, B-co-doped carbon quantum dots (PNBCDs) synthesized using a convenient hydrothermal method exhibit many excellent features, such as strong fluorescence, excitation-independent emission, high monodispersity, good stability, and excellent water solubility with a fluorescence quantum yield of 21.95%. The as-prepared PNBCDs possessed remarkable selectivity and sensitivity towards curcumin with the linear range of 0-1.5 μmol L^-1 and the detection limit for curcumin was 68 nmol L^-1 (3σ/k). Additionally, the wonderfully reversible and repeatable sensitivity to external temperature makes it possible that the PNBCDs could be used as a biocompatible fluorescent ink and for thermo-sensitive devices.

SUBMITTER: Wu B

PROVIDER: S-EPMC9061703 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Highly photoluminescent and temperature-sensitive P, N, B-co-doped carbon quantum dots and their highly sensitive recognition for curcumin.

Wu Bin B Liu Xiaolong X Shi Xiaofeng X Han Wei W Wang Chunru C Jiang Li L

RSC advances 20190313 15

Water-soluble P, N, B-co-doped carbon quantum dots (PNBCDs) synthesized using a convenient hydrothermal method exhibit many excellent features, such as strong fluorescence, excitation-independent emission, high monodispersity, good stability, and excellent water solubility with a fluorescence quantum yield of 21.95%. The as-prepared PNBCDs possessed remarkable selectivity and sensitivity towards curcumin with the linear range of 0-1.5 μmol L<sup>-1</sup> and the detection limit for curcumin was ...[more]

PMID: 35518689

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