Paramagnetic Properties of Metal-Free Boron-Doped Graphene Quantum Dots and Their Application for Safe Magnetic Resonance Imaging

Hui Wang, Richard Revia, Kui Wang, Rajeev J. Kant, Qingxin Mu, Zheng Gai, Kunlun Hong, Miqin Zhang

Research output: Contribution to journalArticlepeer-review

132 Scopus citations

Abstract

Researchers reported the development of metal-free boron-doped graphene quantum dots (B-GODs) as a safe contrast agent for MRI. This magnetic property is produced by introducing both vacancies and elemental boron molecules as the substitutional defect. The B-GQDs were synthesized at 200 °C using 4-vinylphenylboronic acid (VPBA) and with boric acid as the precursor. defects in the GQD framework provide active sites for boron doping by decomposition of VPBA and boric acid, thus leading to the formation of B-GQDs by a nuclear burst at the supersaturation point.

Original languageEnglish
Article number1605416
JournalAdvanced Materials
Volume29
Issue number11
DOIs
StatePublished - Mar 21 2017

Funding

FundersFunder number
National Cancer InstituteR01CA161953

    Keywords

    • MRI
    • boron-doping
    • graphene quantum dots
    • metal-free
    • paramagnetism

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