Facile preparation of Gd3+ doped carbon quantum dots: Photoluminescence materials with magnetic resonance response as magnetic resonance/fluorescence bimodal probes

Ren, Xianyan; Yuan, Xin; Wang, Y.P.; Liu, C.L.; Qin, Yuchang; Guo, Liping; Liu, L.H.

doi:10.1016/j.optmat.2016.04.018

Cited by 26 publications

(13 citation statements)

References 29 publications

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“…In addition, C-dots are chemically stable, inert, form a stable colloidal solution, and are highly resistant to photobleaching compared to traditional fluorescent organic dyes and semiconductor quantum dots. Therefore, the fluorescent properties of C-dots are widely utilized for sensing [ 2 , 3 , 4 ], biomedical imaging [ 5 , 6 , 7 ], catalysis [ 8 , 9 ], energy research [ 10 , 11 ], etc. A number of review articles related to the synthesis and various applications of C-dots were published recently [ 1 , 4 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Doped Carbon Dots for Sensing and Bioimaging Applications: A Minireview

2018

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In the last decade, carbon dots (C-dots, CDs) or carbon quantum dots (CQDs) have attracted a considerable amount of attention from the scientific community as a low cost and biocompatible alternative to semiconductor quantum dots. In particular, doped C-dots have excellent fluorescent properties that have been successfully utilized for numerous applications. In this minireview, we overview the recent advances on the synthesis of doped C-dots derived from carbon-rich sources and their potential applications for biomedical and sensing applications. In addition, we will also discuss some challenges and outline some future perspectives of this exciting material.

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Section: Introductionmentioning

confidence: 99%

Doped Carbon Dots for Sensing and Bioimaging Applications: A Minireview

2018

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“…Upon a direct 363 nm excitation, the Dy-CDs solution showed the broad blue–green emission peak ( Figure 2 inset) with a maximum at 452 nm. It should be mentioned that the excitation and emission peaks of the Dy-CDs solutions were red-shifted compared to the reported studies [ 13 , 14 ]. This red-shift was most likely as a result of the Dy and Cl doping during the synthesis process.…”

Section: Resultsmentioning

confidence: 51%

“…The quantum yield (QY) of the prepared Dy-CDs solutions were measured using a quinine bisulfate solution, as the standard was 6.7%. Thus, the prepared Dy-CDs ccould be utilized for the fluorescence imaging of living cells [ 13 , 14 ].…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, one can use a different strategy where the paramagnetic ions are introduced into a matrix of some biocompatible material. Paramagnetic Gd 3+ has been incorporated into biocompatible materials such as hydroxyapatite [ 11 ], zirconia [ 12 ], and carbon [ 13 , 14 ]. Correspondingly, the region of interest on MRI imaging can be brighter (positive agent) because of the longitudinal relaxation that is caused by the presence of gadolinium ions.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Dots Doped with Dysprosium: A Bimodal Nanoprobe for MRI and Fluorescence Imaging

Atabaev

Piao

Molkenova

2018

JFB

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In recent years, functional nanoprobes with multiple imaging modalities have become an emerging field of biomedical research. In this preliminary study, we utilized a facile hydrothermal method for the preparation of magneto-fluorescent bimodal carbon dots doped with dysprosium (Dy-CDs). The prepared Dy-CDs have shown a good colloidal stability in a water solution and strong blue–green fluorescence, with a maximum at 452 nm. In addition, the excellent transverse relaxivity of the prepared Dy-CDs (r2 = 7.42 ± 0.07 mM−1s−1) makes them also suitable for T2-weighted magnetic resonance imaging (MRI). Thus, synthesized Dy-CDs could be potentially utilized for both MRI and fluorescence imaging of living cells.

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“…However, in this work, specific surface area of BNNF is large. Actually, the large surface area of nanomaterials has many applications such as battery, wave absorption and electromagnetic properties and so forth [ 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 ]. In other words, BNNF has high surface energy, which is beneficial to form closer interface.…”

Section: Resultsmentioning

confidence: 99%

Alignment of Boron Nitride Nanofibers in Epoxy Composite Films for Thermal Conductivity and Dielectric Breakdown Strength Improvement

et al. 2018

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Development of polymer-based composites with simultaneously high thermal conductivity and breakdown strength has attracted considerable attention owing to their important applications in both electronic and electric industries. In this work, boron nitride (BN) nanofibers (BNNF) are successfully prepared as fillers, which are used for epoxy composites. In addition, the BNNF in epoxy composites are aligned by using a film casting method. The composites show enhanced thermal conductivity and dielectric breakdown strength. For instance, after doping with BNNF of 2 wt%, the thermal conductivity of composites increased by 36.4% in comparison with that of the epoxy matrix. Meanwhile, the breakdown strength of the composite with 1 wt% BNNF is 122.9 kV/mm, which increased by 6.8% more than that of neat epoxy (115.1 kV/mm). Moreover, the composites have maintained a low dielectric constant and alternating current conductivity among the range of full frequency, and show a higher thermal decomposition temperature and glass-transition temperature. The composites with aligning BNNF have wide application prospects in electronic packaging material and printed circuit boards.

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Facile preparation of Gd3+ doped carbon quantum dots: Photoluminescence materials with magnetic resonance response as magnetic resonance/fluorescence bimodal probes

Cited by 26 publications

References 29 publications

Doped Carbon Dots for Sensing and Bioimaging Applications: A Minireview

Doped Carbon Dots for Sensing and Bioimaging Applications: A Minireview

Carbon Dots Doped with Dysprosium: A Bimodal Nanoprobe for MRI and Fluorescence Imaging

Alignment of Boron Nitride Nanofibers in Epoxy Composite Films for Thermal Conductivity and Dielectric Breakdown Strength Improvement

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