Preparation of carbon dots with orange emission for Cr(Ш) detection and cellular imaging

Si, Junying; Wang, Hong; Wu, Baoshuang; Wang, Guangshuo; Yang, Jiajia; Huo, Zhongchao; Tian, Tian; Zhao, Xuelin; Han, Shuai

doi:10.1049/mna2.12009

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…An orange-emission carbon dots (OCDs) were created by using a hydrothermal method. According to TEM analysis, the new OCDs were similar in size, with an average particle size of 4–7 nm [ 183 ]. The fluorescence of OCDs was effectively quenched by Cr 3+ .…”

Section: Applications Of Cdsmentioning

confidence: 99%

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Pundi

Chang

2022

Polymers

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Although there is significant progress in the research of carbon dots (CDs), some challenges such as difficulty in large-scale synthesis, complicated purification, low quantum yield, ambiguity in structure-property correlation, electronic structures, and photophysics are still major obstacles that hinder the commercial use of CDs. Recent advances in synthesis, modification, characterization, and applications of CDs are summarized in this review. We illustrate some examples to correlate process parameters, structures, compositions, properties, and performances of CDs-based materials. The advances in the synthesis approach, purification methods, and modification/doping methods for the synthesis of CDs are also presented. Moreover, some examples of the kilogram-scale fabrication of CDs are given. The properties and performance of CDs can be tuned by some synthesis parameters, such as the incubation time and precursor ratio, the laser pulse width, and the average molar mass of the polymeric precursor. Surface passivation also has a significant influence on the particle sizes of CDs. Moreover, some factors affect the properties and performance of CDs, such as the polarity-sensitive fluorescence effect and concentration-dependent multicolor luminescence, together with the size and surface states of CDs. The synchrotron near-edge X-ray absorption fine structure (NEXAFS) test has been proved to be a useful tool to explore the correlation among structural features, photophysics, and emission performance of CDs. Recent advances of CDs in bioimaging, sensing, therapy, energy, fertilizer, separation, security authentication, food packing, flame retardant, and co-catalyst for environmental remediation applications were reviewed in this article. Furthermore, the roles of CDs, doped CDs, and their composites in these applications were also demonstrated.

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Section: Applications Of Cdsmentioning

confidence: 99%

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Pundi

Chang

2022

Polymers

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“…Carbon dots (CDs) is a new member of carbon family and it possesses a lot of merits such as low cost, easy availability, low cytotoxicity, good biocompatibility, and high hydrophilicity [18,19]. Some novel CDs are prepared and their application in the sensing field is constantly explored [20,21]. Miao et al synthesized CDs with high QY by electrochemical carbonization of ethanol.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and phosphorus‐doped green carbon dots with ‘turn‐off’ fluorometric sensor for Fe ³⁺ ions detection

Zhang

Ding

et al. 2022

Micro & Nano Letters

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Carbon dots (CDs) were paid more and more attention for detecting ferric ions (Fe3+) containing in the organism or environment. Thus, nitrogen and phosphorus co‐doping green CDs were synthesized using p‐Phenylenediamine as the carbon source and phosphoric acid as phosphorus source by the solvo‐thermal method. As‐prepared CDs were characterized by morphology, optical properties, and surface functional groups. The CDs can emit better green light peak at 511 nm excited by 380 nm UV light. Excitation independence property of N, P‐CDs was determined by measuring the photoluminescence (PL) spectra with different excitation wavelengths. The ions detection ability was investigated by analyzing the emission intensity of CDs in eight different kinds of ions solutions and different concentrations of Fe3+ ions solutions. The N, P‐CDs show high selectivity towards Fe3+ ions with a limit of detection (LOD) of 0.11 μM in the concentration region of 300 to 450 μM. The results illuminated that this kind of CDs can be a candidate material for Fe3+ ions detection.

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Sulfur-doped carbon dots synthesis under microwave irradiation as turn-off fluorescent sensor for Cr(III)

et al. 2021

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This study synthesized a facile and high sensitive fluorescent probe based on sulfur-doped carbon dots (S-CDs) using a one-step microwave irradiation method. The probe exhibited a strong blue emission and a high quantum yield (QY) of 36.40%. In the detection, the presence of trivalent chromium (Cr(III)) strongly quenched the PL intensity of S-CDs by the inner filter effect (IFE) quenching mechanism of Cr(III) on the S-CDs. The S-CDs exhibited good sensitivity to turn-off Cr(III) detection with a linear range concentration of 0–45 μM and a detection limit of 0.17 μM. Furthermore, the proposed method has been successfully applied for Cr(III) detection in natural water samples with the 93.68–106.20% recoveries.

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Preparation of carbon dots with orange emission for Cr(Ш) detection and cellular imaging

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 3 publications

References 30 publications

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Nitrogen and phosphorus‐doped green carbon dots with ‘turn‐off’ fluorometric sensor for Fe ³⁺ ions detection

Sulfur-doped carbon dots synthesis under microwave irradiation as turn-off fluorescent sensor for Cr(III)

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Preparation of carbon dots with orange emission for Cr(Ш) detection and cellular imaging

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 3 publications

References 30 publications

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots

Nitrogen and phosphorus‐doped green carbon dots with ‘turn‐off’ fluorometric sensor for Fe 3+ ions detection

Sulfur-doped carbon dots synthesis under microwave irradiation as turn-off fluorescent sensor for Cr(III)

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Product

Resources

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Nitrogen and phosphorus‐doped green carbon dots with ‘turn‐off’ fluorometric sensor for Fe ³⁺ ions detection