Natural deep eutectic solvent assisted synthesis and applications of chiral carbon dots

Wang, Min; Li, Chunhu; Zhou, Meiling; Xia, Zhining; Huang, Yike

doi:10.1039/d2gc01949c

Cited by 30 publications

(24 citation statements)

References 45 publications

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“…In addition, the response mechanism and chiral optical activity of the CCDs were elaborated through calculations. This work not only opens up new avenues for the development of nanomaterials using green methods, but also opens up new avenues for the prospective application of chiral nanomaterials in clinical diagnostics and drug screening …”

Section: Sensing and Imaging Applications Of Cds-based Sensorsmentioning

confidence: 93%

“…Although research on chiral 0D CNMs has only recently started, exact relationships between the structure of chiral 0D CNMs and related optical properties remain unclear because the separation, purification, and structural characterization of chiral 0D CNMs are still in their preliminary stages and, thus, practical applications of chiral 0D CNMs remain far off. However, the considerable influence of the chirality on the physicochemical properties of 0D CNMs has attracted considerable attention because chiral 0D CNMs show excellent promise for application to chiral drugs and pesticides, molecular recognition, electromagnetic materials, and electroluminescent LEDs …”

Section: Optical Properties Of 0d Cnmsmentioning

confidence: 99%

“…However, the considerable influence of the chirality on the physicochemical properties of 0D CNMs has attracted considerable attention because chiral 0D CNMs show excellent promise for application to chiral drugs and pesticides, molecular recognition, electromagnetic materials, and electroluminescent LEDs. 429 5.1.9. In Vitro Photostability and In Vivo Stability.…”

Section: Properties Of 0d Cnms Applied In Fluorescent Sensing and Ima...mentioning

confidence: 99%

“…This work not only opens up new avenues for the development of nanomaterials using green methods, but also opens up new avenues for the prospective application of chiral nanomaterials in clinical diagnostics and drug screening. 429 In doping studies, the codoping of three elements would enhance the performance of CQDs. 114 Ren et al used a combination of B, N, and S-codoped CQDs and Fe 3+ into B, N, S-CQDs@Fe 3+ to investigate AA as enzymatic cofactors, reducing agents, essential trophic factors, and components of neurotransmitter-related enzymes, with the lowest concentration of 0.05 μmol•L −1 and the color of the sensor solution changed from blue to red, which was caused by the complexation between Fe 3+ and −OH of AA, pointing to the great potential for biomedical applications (Figure 20i).…”

Section: Chemicalmentioning

confidence: 99%

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Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Yang,

Xu,

et al. 2023

Chem. Rev.

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Advances in nanotechnology and nanomaterials have attracted considerable interest and play key roles in scientific innovations in diverse fields. In particular, increased attention has been focused on carbon-based nanomaterials exhibiting diverse extended structures and unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, carbon nanodiamonds, and carbon dots, possess excellent bioaffinities and superior fluorescence properties that make these structures suitable for application to environmental and biological sensing, imaging, and therapeutics. This review provides a systematic overview of the classification and structural properties, design principles and preparation methods, and optical properties and sensing applications of zero-dimensional carbon nanomaterials. Recent interesting breakthroughs in the sensitive and selective sensing and imaging of heavy metal pollutants, hazardous substances, and bioactive molecules as well as applications in information encryption, super-resolution and photoacoustic imaging, and phototherapy and nanomedicine delivery are the main focus of this review. Finally, future challenges and prospects of these materials are highlighted and envisaged. This review presents a comprehensive basis and directions for designing, developing, and applying fascinating fluorescent sensors fabricated based on zero-dimensional carbon nanomaterials for specific requirements in numerous research fields.

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Section: Sensing and Imaging Applications Of Cds-based Sensorsmentioning

confidence: 93%

Section: Optical Properties Of 0d Cnmsmentioning

confidence: 99%

Section: Properties Of 0d Cnms Applied In Fluorescent Sensing and Ima...mentioning

confidence: 99%

Section: Chemicalmentioning

confidence: 99%

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Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Yang,

Xu,

et al. 2023

Chem. Rev.

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“…DES have high viscosity and ionic strength and they can act as a soft template to produce functional micro/nano-sized particles with special morphology and properties [ 16 ]. Moreover, they have low vapor pressure which allows reactions at high temperature and ambient pressure (no need for high-pressure reactors) [ 17 ]. DES are eco-friendly and cheap solvents, that make possible a successful synthesis of carbons without additional organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage

et al. 2022

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The capacitance and operating voltage of supercapacitors as well as their energy density have been increased by development of different materials and electrolytes. In this paper, two strategies, for the first time, were used to improve energy density: Mn3O4- and N-dual doped carbon electrode and aqueous mixture of multivalent ions as electrolyte. Mn3O4- and N-dual doped carbon was prepared by a novel and cost-effective procedure using deep eutectic solvent. XRD, XPS, and FTIR confirmed presence of Mn3O4 and nitrogen, while SEM and EDS elemental mapping showed micrometer-sized nanosheets with uniform distribution of C, O, N, and Mn atoms. Charge storage behavior of carbon was tested in aqueous multivalent-based electrolytes and their mixture (Ca2+-Al3+). Regarding both specific capacitance and workable voltage, the Ca2+-Al3+ mixed electrolyte was found as the best optimal solution. The calcium addition to the Al-electrolyte allows the higher operating voltage than in the case of individual Al(NO3)3 electrolyte while the addition of Al3+ ion in the Ca(NO3)2 electrolyte improves the multivalent-ion charge storage ability of carbon. As a result, the specific energy density of two-electrode Mn3O4@N-doped carbon//Al(NO3)2+Ca(NO3)2//Mn3O4@N-doped carbon supercapacitor (34 Wh kg−1 at 0.1 A g−1) overpasses the reported values obtained for Mn-based carbon supercapacitors using conventional aqueous electrolytes.

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Generation, Inversion, and Amplification of Intrinsic Circularly Polarized Room Temperature Phosphorescence in Chiral Carbon Dots

Gao,

Pan,

Zhao

et al. 2024

Adv Funct Materials

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Chiral carbon dots (C‐dots) with circularly polarized luminescence emission have attracted tremendous attention, but achieving circularly polarized room temperature phosphorescence (CPRTP) C‐dots is still challenging. The present contribution reports the success in constructing C‐dots with intrinsic CPRTP property through an eco‐friendly solvent‐free pyrolysis method using urea and (R/S)‐1,1′‐binaphthyl‐2,2′‐diamine as precursors. The obtained C‐dots exhibit intrinsic circularly polarized fluorescence (CPF) and CPRTP dual emission with dissymmetric factors of 10−3, accompanied by long lifetime up to 400 ms. Detailed experimental characterizations and theoretical calculations show that the presence of carbonyl groups and nitrogen atoms as well as charge transfer excitation within the C‐dots is crucial for the RTP emission. More importantly, upon the incorporation of achiral helical polyacetylene, chirality transfer from the nanoscale C‐dots to achiral helical chains effectively occurs during the film formation process, resulting in amplified chiroptical performance. Significantly, based on the synergistic interaction of “circularly polarized excitation” and “re‐polarization” mechanisms, inversion and amplification of CPF/CPRTP emissions with large dissymmetric factors up to 2.0 × 10−2/2.2 × 10−2 are observed in the resulting C‐dots/polyacetylene composite films. This work provides a platform for the construction of novel CPRTP materials with significant potentials.

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Natural deep eutectic solvent assisted synthesis and applications of chiral carbon dots

Abstract: Chiral recognition has attracted extensive attention in the field of pharmaceutical science as it plays an important role in understanding biological and pharmaceutical mechanisms. Chiral carbon dots (CCDs), which integrate...

Cited by 30 publications

References 45 publications

Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage

Generation, Inversion, and Amplification of Intrinsic Circularly Polarized Room Temperature Phosphorescence in Chiral Carbon Dots

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