Fluorescence probe based on boron-doped carbon quantum dots for high selectivity “on-off-on” mercury ion sensing and cell imaging

Meng, Alan; Zhang, Yue; Wang, Xianghu; Xu, Qinhai; Li, Zhenjiang; Sheng, Liying; Liang, Yan

doi:10.1016/j.colsurfa.2022.129150

Cited by 16 publications

(6 citation statements)

References 36 publications

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“…[76] Values observed in (F) are associated with oscillations in the CÀ N bond. The last band(G), presented CÀ S (ν = 801-612 cm À 1 ), [50,77] which reaffirms the successful addition of À SH in the N,S-CDs surface. The colloidal system was quantified via ZP Figure 1(e), presenting a peak in À 23.4 mV, in pH = 11.5 (value measured from carbon dots synthesized), leading to the belief of moderate stability, [80] being considered not a worrying issue to experimental proposes of the material.…”

Section: Characterization Techniques Used For Ns-cdsmentioning

confidence: 75%

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

Silva de Araújo,

Costa Ferrer,

Seagesser Santos

et al. 2023

ChemistrySelect

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Water contamination by heavy metals is a global issue for environmental safety and new technologies have been developed aim to evaluate the contamination, mainly by anthropogenic action. In this work, we synthesized blue light‐emitting carbon dots (CDs) from ionic sources for sensing applications of heavy metal cations in an aqueous solution. Spectroscopic and morphologic characteristics of the CDs were performed using Fourier transform infrared (FTIR) spectroscopy, fluorescence, and absorption techniques, besides transmission electron microscopy (TEM), dynamic light scattering (DLS), and zeta potential (ZP) measurements. Moreover, a two‐level full factorial design of experiments (DOE) was carried out to achieve the best hydrothermal parameters of synthesis, including the number of mols of precursors, temperature, and reaction time. The pH and buffer nature were evaluated for the quantification step to improve the N,S‐CDs response. We have obtained a range of 2.23–8.57 μmol L−1 (among Bi3+, Cd2+, Hg22+, Hg2+, Pb2+, and Sb3+) in terms of limit of detection (LOD). These aspects frame the material as a potential sensor for the identification of heavy metals in water.

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Section: Characterization Techniques Used For Ns-cdsmentioning

confidence: 75%

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

Silva de Araújo,

Costa Ferrer,

Seagesser Santos

et al. 2023

ChemistrySelect

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“…33,38,42 The peaks at 3088 cm −1 , 2842 cm −1 , 1474 cm −1 , 1308 cm −1 , 1088 cm −1 , and 961 cm −1 in the FTIR spectrum for B-CQD correspond to functional groups O-H, C-H, B-O, B-OH, and C-B, respectively. [43][44][45] For S-CQD, the peak at 3292 cm −1 refers to the OH group. 46 The peaks at 1673 cm −1 , 1606 cm −1 , and 1277 cm −1 in the S-CQD FTIR spectrum can be attributed to the C]O, C] C, and C]S functional groups, respectively.…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal synthesis of B, S, and N-doped carbon quantum dots for colorimetric sensing of heavy metal ions

Aygun,

Cobas,

Tiri

et al. 2024

RSC Adv.

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“…The CoP-NCQD nanoflowers obtained were used as catalysts in the anodic oxygen evolution reaction to achieve high-efficiency catalysis. Meng et al [66] prepared boron-doped CQDs from citric acid, histidine and borax by the one-step hydrothermal method. The CQDs obtained were sensitive to Hg 2+ , with a detection limit of 2.5 μM.…”

Section: Dopingmentioning

confidence: 99%

Advances in carbon quantum dot technology for food safety: preparation, modification, applications and mechanisms

Sun,

Cheng,

et al. 2024

Nano Ex.

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Functionalized carbon quantum dots (CQDs) show great potential for application in the field of food safety by combining their use with other technologies. CQDs are good candidates in this regard due to the wide range of sources of raw materials for their synthesis, and their good biocompatibility and stable fluorescence. This paper analyses the properties of CQDs and compares them with those of conventional semiconductor quantum dots. It analyses the similarities and differences between hydrothermal carbonization, pyrolysis and microwave-assisted synthesis of CQDs, and reviews the principles and methods of functionalization of CQDs through surface modification and doping. Finally, it discusses the applications of functionalized CQDs in food safety, such as detection and sensing, bio-inhibition and photocatalytic degradation, and the mechanisms of detection.

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Fluorescence probe based on boron-doped carbon quantum dots for high selectivity “on-off-on” mercury ion sensing and cell imaging

Cited by 16 publications

References 36 publications

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

Hydrothermal synthesis of B, S, and N-doped carbon quantum dots for colorimetric sensing of heavy metal ions

Advances in carbon quantum dot technology for food safety: preparation, modification, applications and mechanisms

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