Study of structural and functional properties of fluorescent EDTA@CQDs synthesized from peanut shells via pyrolysis technique

Singh, Lovepreet; Sharma, T. K.; Singh, Vishal

doi:10.1016/j.matpr.2020.08.555

Cited by 6 publications

(16 citation statements)

References 27 publications

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“…Another peak observed at 1727 cm -1 represents the stretching vibrations of C=O bond. The sharp peaks present at 1605 cm -1 and 1227 cm -1 can be attributed to C=N and C-N bending vibrations respectively [10,[39][40][41]. These observations confirm the presence of carbonyl and hydroxyl functional groups on the surface of CDs.…”

Section: Resultsmentioning

confidence: 63%

“…UV-Visible spectroscopy is used to determine the optical properties of synthesized material. The synthesized materials are generally placed in cuvettes made of quartz usually 1cm in length (also known as optical path) in aqueous form with a concentration around 500μL [10]. The absorption spectra of green synthesized CDs was recorded in the range from 300 nm -700 nm (Figure 1A).…”

Section: Resultsmentioning

confidence: 99%

“…Where, QY, I, A, and η are assigned to QY, integrated PL intensity, absorbance values, and refractive index, respectively. The subscript R and S refers to reference and sample [10].…”

Section: Resultsmentioning

confidence: 99%

“…In 2016, Dong et al synthesized CDs from peanut shells utilizing pyrolysis achieving a quantum yield of 10.58%. The utilization of CDs in Copper ions sensing was studied by their group [10,33]. Xiaochen et al and their group reported the green synthesis of carbon quantum dots using three different precursors: bee pollen, 5 citric acids, and glucose via hydrothermal route for green sensitizer in TiO2 based solar cells [34].…”

Section: Review Of Literaturementioning

confidence: 99%

“…CDs are by and large quasispherical nanostructures which contain different cores either amorphous or crystalline cores. They are interleaved alongside sp 2 hybridized carbon or graphene/graphene oxide (GO) like sheets integrated with diamond-like carbon atoms that are sp 3 hybridized [8][9][10]. CDs with the notable electrical characteristics of sp 2 carbon-based nanomaterials, distinguishing them from conventional QDs or other carbon nanomaterials like graphene and carbon nanotubes (CNTs) [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Structural and functional study of fluorescent carbon dots synthesized from lemon-peel via one step microwave irradiation method

Singh

Kishore²,

Singh³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In the current research work, green synthesis of Carbon Dots (CDs) from lemon peels via one step microwave irradiation method has been reported. The synthesis technique for CDs is environmental friendly and economical. Green synthesized fluorescent CDs showed high quantum yield of 16.9% obtained from Photo-luminescent (PL) analysis. Structural and functional properties of CDs have been carefully studied with the help of different spectroscopic techniques such as UV-Vis, FT-IR, XPS and XRD. CDs were comprised of sun-flower like morphology with an average size of 20.5 nm. CDs were found to be amorphous in nature. The effect of pH and ionic strength on the synthesized CDs was also explored. All the studies indicate that green CDs can have potential applications in novel biological and opto-electronic devices.

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Section: Resultsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

“…Where, QY, I, A, and η are assigned to QY, integrated PL intensity, absorbance values, and refractive index, respectively. The subscript R and S refers to reference and sample [10].…”

Section: Resultsmentioning

confidence: 99%

Section: Review Of Literaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structural and functional study of fluorescent carbon dots synthesized from lemon-peel via one step microwave irradiation method

Singh

Kishore²,

Singh³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Luminous blue carbon quantum dots employing Anisomeles indica (catmint) induce apoptotic signaling pathway in triple negative breast cancer (TNBC) cells

Kumar,

Mahalakshmi,

Anitha

et al. 2024

Luminescence

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Herein, luminous blue carbon quantum dots (CDs) employing Anisomeles indica (Catmint) were reported with imaging, self‐targeting, and therapeutic effects on triple‐negative breast cancer (TNBC, MDA‐MB‐231) cells. The salient features of CDs generated from catmint are as follows: i) optical studies confirm CDs with excitation‐dependent emission; ii) high‐throughput characterization authenticates the formation of CDs with near‐spherical shape with diameter ranging between 5 and 15 nm; iii) CDs induce cytotoxicity (3.22 ± 0.64 μg/ml) in triple‐negative breast cancer (TNBC, MDA‐MB‐231) cells; iv) fluorescence microscopy demonstrates that CDs promote apoptosis by increasing reactive oxygen species (ROS) and decreasing mitochondrial membrane potential; v) CDs significantly up‐regulate pro‐apoptotic gene expression levels such as caspases‐8/9/3. Finally, our work demonstrates that catmint‐derived CDs are prospective nanotheranostics that augment cancer targeting and imaging.

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Application Progress of Green Carbon Dots in Analysis and Detection

Zuo

et al. 2022

Part & Part Syst Charact

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Green chemistry is currently attracting more and more attention due to its eco‐friendly, and green carbon dots (g‐CDs) are creating a research boom. The g‐CDs have huge application prospects in analysis and detection due to their excellent optical properties, high biocompatibility, and low toxicity compared to other fluorescent materials. Based on the study of g‐CDs, the optical properties, synthesis methods, surface modification methods, and sensing mechanisms of g‐CDs are outlined, and the application in analysis and detection of environmental, food, biomolecules, and other organic small molecules are reviewed. At the same time, the challenges faced by g‐CDs are outlined. This review provides valuable references for further research and wider application of g‐CDs.

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Study of structural and functional properties of fluorescent EDTA@CQDs synthesized from peanut shells via pyrolysis technique

Cited by 6 publications

References 27 publications

Structural and functional study of fluorescent carbon dots synthesized from lemon-peel via one step microwave irradiation method

Structural and functional study of fluorescent carbon dots synthesized from lemon-peel via one step microwave irradiation method

Luminous blue carbon quantum dots employing Anisomeles indica (catmint) induce apoptotic signaling pathway in triple negative breast cancer (TNBC) cells

Application Progress of Green Carbon Dots in Analysis and Detection

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