Solvothermal method to prepare graphene quantum dots by hydrogen peroxide

Tian, Renbing; Zhong, Suting; Wu, Juan; Shen, Yan; Jiang, Wei; Wang, Tianhe

doi:10.1016/j.optmat.2016.07.032

Cited by 94 publications

(49 citation statements)

References 25 publications

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“…The principle is to break the bonds between carbon materials to form GQDs via high temperature under high pressure [56][57][58][59]. Tian et al [60] used H 2 O 2 to synthesize GQDs in N, N-dimethylformamide (DMF) environment by one-step solvothermal method. In the whole preparation process, the use of concentrated sulfuric acid and nitric acid to treat raw materials was completely avoided, whereas no impurities were introduced (Fig.…”

Section: Hydrothermal Methodsmentioning

confidence: 99%

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Synthesis of graphene quantum dots and their applications in drug delivery

et al. 2020

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This review focuses on the recent advances in the synthesis of graphene quantum dots (GQDs) and their applications in drug delivery. To give a brief understanding about the preparation of GQDs, recent advances in methods of GQDs synthesis are first presented. Afterwards, various drug delivery-release modes of GQDs-based drug delivery systems such as EPR-pH delivery-release mode, ligand-pH delivery-release mode, EPR-Photothermal delivery-Release mode, and Core/Shell-photothermal/magnetic thermal delivery-release mode are reviewed. Finally, the current challenges and the prospective application of GQDs in drug delivery are discussed.

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Section: Hydrothermal Methodsmentioning

confidence: 99%

Section: Synthesis Methods Of Gqdsmentioning

confidence: 99%

Synthesis of graphene quantum dots and their applications in drug delivery

et al. 2020

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“…Later, Tian et al presented mild oxidant (H 2 O 2 )-assisted solvothermal exfoliation of graphite ( Figure 4D). Impressively, the non-acid oxidantassisted solvothermal reaction do not require extensive dialysis for purification and thus exhibited facile, environment friendly, and low-cost fabrication of GQDs (Tian et al, 2016). During solvothermal reaction, the tunable PL of GQDs was studied by Qi et al Following different reaction conditions, two different-sized GQDs (2.6 and 4.5 nm) with different surface chemistry were prepared (Qi et al, 2018).…”

Section: Hydrothermal/solvothermal Exfoliationmentioning

confidence: 99%

Recent Advances on Graphene Quantum Dots for Bioimaging Applications

et al. 2020

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Being a zero-dimensional (0D) nanomaterial of the carbon family, graphene quantum dots (GQDs) showed promising biomedical applications owing to their ultra-small size, non-toxicity, biocompatibility, excellent photo stability, tunable fluorescence, and water solubility, etc., thus capturing a considerable attention in biomedical field. This review summarizes the recent advances made in the research field of GQDs and place special emphasis on their bioimaging applications. We briefly introduce the synthesis strategies of GQDs, including top-down and bottom-up strategies. The bioimaging applications of GQDs are also discussed in detail, including optical [fluorescence (FL)], two-photon FL, magnetic resonance imaging (MRI), and dual-modal imaging. In the end, the challenges and future prospects to advance the clinical bioimaging applications of GQDs have also been addressed.

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“…15 Owing to their merits of low toxicity, good biocompatibility, resistance to photobleaching, stable luminescence, high specic surface area, and abundant surface functional groups, 16,17 GQDs have been shown to be potential candidates in the elds of photovoltaic devices, nanosensors, and bioimaging. 18,19 GQDs have been prepared by various methods, such as microwave, 20 electrochemical, 21 thermal pyrolysis, 22 exfoliation, 23 and solvothermal treatment 24 However, most of those methods usually involve expensive starting materials, tedious processes, and complex syntheses. 25 In this study, we developed an eco-friendly imprinted polymer anchored on GQDs for uorescent detection of p-NA using a facile method.…”

Section: Introductionmentioning

confidence: 99%