Highly fluorescent nitrogen-doped carbon dots derived from Phyllanthus acidus utilized as a fluorescent probe for label-free selective detection of Fe3+ ions, live cell imaging and fluorescent ink

Atchudan, Raji; Edison, Thomas Nesakumar Jebakumar Immanuel; Aseer, Kanikkai Raja; Perumal, Suguna; Karthik, Namachivayam; Lee, Yong Rok

doi:10.1016/j.bios.2017.07.076

Cited by 609 publications

(174 citation statements)

References 43 publications

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“…This portion of l ex dependent uorescence behavior is presumably stemmed from the optical selection of CDs with different surface defect states and particle sizes. 53 The dual emission rationales with similar emission wavelength merged together to afford the light blue emission behavior. Using quinine sulfate as a standard, the QY of CDs is estimated to be 68.9% (l ex ¼ 320 nm), which is substantially higher over the CDs prepared free of ethylenediamine passivation (QY ¼ 8% at l ex ¼ 340 nm), this result highlights the crucial role of passivation treatment, which not only promotes the hydrolysis of prawn shell precursor, but stabilizes the defects sites and facilitates the radiative recombination of excitation state electron-hole pairs, therefore the uorescence emission is substantially reinforced.…”

Section: Characterization Of Cdsmentioning

confidence: 99%

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

et al. 2019

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Section: Characterization Of Cdsmentioning

confidence: 99%

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

et al. 2019

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“…In recent years, various biomass has been used as carbon sources to prepare BCDs ( Figure ). The biomass used includes walnut peel, garlic, papaya juice, rice husk, winter melon, lychee seeds, goose feather, silkworm chrysalis, bee pollen, milk, Phyllanthus acidus, and baked lamb . BCDs prepared using biomass have been applied to biological imaging, sensors, drug delivery, and other applications ( Scheme ).…”

Section: Introductionmentioning

confidence: 99%

Biomass‐Derived Carbon Dots and Their Applications

Meng

Bai

Wang

et al. 2019

Energy & Environ Materials

409

179

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Carbon dots (CDs) have received much attention due to their superior properties including water solubility, low toxicity, biocompatibility, small size, fluorescence, and ease of modification. The use of a more environmentally friendly method to prepare high‐quality CDs is still an urgent question waiting for solve. The use of renewable, inexpensive, and green biomass resources not only meets the urgent need for large‐scale synthesis biomass CDs (BCDs), but also promotes the development of sustainable applications. In this article, we summarize the representative methods for synthesizing BCDs in green and simple ways using biomass as a carbon source, including hydrothermal carbonization, and microwave, pyrolysis. The prepared BCDs have a uniform particle size distribution and a relatively high throughput, which provide a method to scale up industrial production. Moreover, the integration of specific optical properties, that is, tunable photoluminescence and up‐photoluminescence, has led to remarkable use in bioimaging, sensing, and drug delivery. But the current review is not particularly comprehensive for BCDs. Therefore, we now provide a review focusing on the synthesis, properties, and recent advances in BCDs in biosensing, bioimaging, optoelectronics, and catalytic applications.

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“…e surface of the resulting CNs contains rich hydrophilic functional groups, for example, C-OH, C-O, and C-OOH. ere has been just a little research on an investigation of CNs in water remediation due to the presence of oxygen functional groups [17]. e carbon nanospheres could present good adsorption efficiency towards heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution

Hussain

Alwan

Alshamsi

et al. 2020

International Journal of Chemical Engineering

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In this paper, green and facile synthesis of sulfur-and nitrogen-codoped carbon nanospheres (CNs) was prepared from the extract of Hibiscus sabdariffa L by a direct hydrothermal method. Finally, sulfur-carbon nanospheres (CNs) were used as the adsorbent to remove Pb +2 ions from aqueous solutions because of the high surface area of S-CNs from CNs and N-CNs. e synthesized nanospheres were examined by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy, transmission electron microscopy (TEM), and nitrogen adsorption-desorption isotherms. e results show spherical shapes have a particle size of up to 65 nm with a high surface area capable of absorbing lead ions efficiently. Additionally, the factors affecting the process of adsorption that include equilibrium time, temperature, pH solution, ionic intensity, and adsorbent dose were studied. e equilibrium removal efficiency was studied employing Langmuir, Freundlich, and Temkin isotherm forms. e kinetic data were analyzed with two different kinetic models, and both apply to the adsorption process depending on the values of correlation coefficients. e thermodynamic parameters including Gibbs free energy (ΔG°), standard enthalpy change (ΔH°), and standard entropy change (ΔS°) were calculated for the adsorption process.

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Highly fluorescent nitrogen-doped carbon dots derived from Phyllanthus acidus utilized as a fluorescent probe for label-free selective detection of Fe3+ ions, live cell imaging and fluorescent ink

Cited by 609 publications

References 43 publications

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

Biomass‐Derived Carbon Dots and Their Applications

Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution

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