Synthesis of tunable high-thermal stability carbon dots via functionalization for applications in high-temperature environment

Shishodia, Shubham; Rimal, Vishal; Srivastava, Priyanka

doi:10.1007/s13204-021-01814-7

Cited by 15 publications

(4 citation statements)

References 64 publications

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“…[32] However, the broadband emissive property of CDs was applied almost entirely in white light-emitting diodes, yet none of them in multicolor laser emission. [33][34][35][36][37] Besides, aggregation-caused quenching (ACQ), [38] fluorescence instability from continuous work, [39] and moistness or oxygen from the external environment [40] still remain as challenging obstacles to realize solid-state fluorescence and laser emission. It is hard to put CDs into further practice in spite of abundant remarkable preponderance in different aspects.…”

Section: Research Articlementioning

confidence: 99%

“…Besides, aggregation‐caused quenching (ACQ), [ 38 ] fluorescence instability from continuous work, [ 39 ] and moistness or oxygen from the external environment [ 40 ] still remain as challenging obstacles to realize solid‐state fluorescence and laser emission. It is hard to put CDs into further practice in spite of abundant remarkable preponderance in different aspects.…”

Section: Introductionmentioning

confidence: 99%

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Ultra‐Broadband Random Laser and White‐Light Emissive Carbon Dots/Crystal In‐Situ Hybrids

Wang

Zhang

et al. 2022

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The continuous white‐light emission of carbon dots (CDs) can be applied to producing multicolor laser emissions by one single medium. Meanwhile, the solid‐state emission greatly contributes to its practical application. In this work, a strategy to realize the in‐situ hybridization of silane‐functionalized CDs (SiCDs) and 1,3,5‐benzenetricarboxylic acid trimethyl ester (Et3BTC) by a one‐pot solvothermal method is reported. Significantly, the SiCDs/Et3BTC hybrid crystals exhibit ultra‐broadband random laser emission over the near ultraviolet‐visible region under 265 nm nanosecond pulsed laser excitation. The wavelength region of laser emission is achieved from 315 to 600 nm within an emission band of CDs‐based materials. It is worth noting that the wavelength range of the laser is wider than the previously reported works. It is proposed that the continuous white‐light emission of SiCDs caused by multiple fluorescence centers mainly gives rise to the broadband random laser emission. Moreover, the crystals are conducive to forming resonance and realizing solid‐state laser emission. This in‐situ method is expected to enable a more convenient, cheaper, and greener approach to prepare luminescent hybrids for application in multicolor laser displays, multi‐level laser anti‐counterfeiting, supercontinuum light sources, and so on.

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Section: Research Articlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultra‐Broadband Random Laser and White‐Light Emissive Carbon Dots/Crystal In‐Situ Hybrids

Wang

Zhang

et al. 2022

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“…[115] In recent years, researchers have discovered that CDs for polymers are high-performance flame retardants and have started to focus on the flame-retardant mechanism in depth. [116][117][118] Compared with conventional flame retardants, the low-toxicity and low-density CDs avoid the production of toxic contaminants and reduce the weight added to a given object as well as the negative effects on its mechanical properties. [119] CDs are expected to become the fourth generation of flame retardants with the perfection of the techniques for their large-scale preparation.…”

Section: Flame Retardancymentioning

confidence: 99%

Facile Access to Fabricate Carbon Dots and Perspective of Large‐Scale Applications

Chen

Wang

Liu

et al. 2022

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Carbon dots (CDs), fluorescent carbon nanoparticles with particle sizes < 10 nm, are constantly being developed for potential large‐scale applications. Recently, methods allow CD synthesis to be carried out on large‐scale preparation in a controlled fashion are potentially important for multiple disciplines, including bottom‐up strategy, top‐down method. In this review, the recent progresses in the research of the methods for large‐scale production of CDs and their functionalization are summarized. Especially, the methods of CD synthesis, such as large‐scale preparation, hydrothermal/solvothermal, microwave‐assisted, magnetic hyperthermia microfluidic and other methods, along with functionalization of CDs, are summarized in detail. By promising applications of CDs, there are three aspects have been already reported, such as enhancing mechanical properties, flame retardancy, and energy storage. Also, future development of CDs is prospected.

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“…Carbon dots (CDs), with a diameter of approximately 10 nanometers, are microsphere particles that have gained extensive research attention over the past decade due to their exceptional stability, [13][14][15] fluorescence properties, [16][17][18] tunability, 19,20 and biocompatibility. 21,22 They find wide-ranging applications in the field of biomedicine, including bioimaging, drug delivery, photodynamic and photothermal therapies, electrocatalysis, and photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Novel Synthesized Carbon Dots Derived Resveratrol Using One-Pot Green Method in Accelerating in vivo Wound Healing

Cheng,

Zhao,

Wang

et al. 2023

IJN

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Background: Carbon dots (CDs), a novel nanomaterial, have gained significant attention over the past decade due to their remarkable fluorescence properties, low toxicity, and biocompatibility. These characteristics make them promising in various applications, especially in biomedicine. However, most CDs are currently synthesized using chemical materials, and their biocompatibility falls short of natural compounds. Research on extracting CDs from natural sources is limited, and their potential in biomedicine remains largely unexplored. Methods: We extracted CDs from resveratrol, a natural plant compound, and enhanced their water solubility using citric acid. Characterization of resveratrol-based carbon dots (RES-CDs) was carried out using various techniques, including UV-Vis, SEM, TEM, FTIR, XRD, and fluorescence spectroscopy. Extensive biocompatibility tests, wound healing assays, cell migration studies, and angiogenesis experiments were conducted using human umbilical vein endothelial cells (HUVEC). In addition, we investigated the biocompatibility and wound healing potential of RES-CDs in an in vivo rat model of inflammation. Results: RES-CDs exhibited stable yellow-green fluorescence under 365-nanometer ultraviolet light and demonstrated excellent biocompatibility. In wound healing experiments, RES-CDs outperformed resveratrol in terms of cell scratch healing, migration, and tube formation. In a rat skin defect model, RES-CDs promoted wound healing and stimulated the formation of blood vessels and tissue regeneration near the wound site, as evidenced by increased CD31 and VEGF expression. Conclusion: Resveratrol-derived CDs with enhanced water solubility show superior performance in tissue healing compared to resveratrol. This discovery opens new possibilities for the clinical application of resveratrol-based carbon dots.

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Synthesis of tunable high-thermal stability carbon dots via functionalization for applications in high-temperature environment

Cited by 15 publications

References 64 publications

Ultra‐Broadband Random Laser and White‐Light Emissive Carbon Dots/Crystal In‐Situ Hybrids

Ultra‐Broadband Random Laser and White‐Light Emissive Carbon Dots/Crystal In‐Situ Hybrids

Facile Access to Fabricate Carbon Dots and Perspective of Large‐Scale Applications

The Potential of Novel Synthesized Carbon Dots Derived Resveratrol Using One-Pot Green Method in Accelerating in vivo Wound Healing

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