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Pansari P, Durga G, Sharma R. Carbon nanoprobe derived from Nyctanthes arbor-tristis flower: Unveiling the surface defect-derived fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123119. [PMID: 37478708 DOI: 10.1016/j.saa.2023.123119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/24/2023] [Accepted: 07/07/2023] [Indexed: 07/23/2023]
Abstract
Dual Emissive (green and blue) Carbon dots (C-Dots) aka g-CD and b-CD were synthesized using flowers of Nyctanthes arbortristis as the sole precursor via hydrothermal method without the aid of any external passivating agent. In the present report, the effect of time and temperature on the hydrothermal reaction was evaluated in order to modulate the surface defects that could lead to dual emissions. To gauge the nature, size, morphology, and optoelectronic characteristics, the C-Dots were characterized using high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), UV-Vis spectroscopy and Fluorescence spectroscopy. The fluorescence studies of both the Carbon Dots revealed their excitation-dependent emission characteristics with the bathochromic shift. Furthermore, both g-CD and b-CD could effectively be utilized as efficient fluorescent probes for the selective and sensitive detection of Fe3+. These fluorescent nanoprobes could selectively detect Fe3+ over a wide range of concentrations (3 µM to 100 µM) with limit of detection (LOD) as low as 0.06 µM and 0.70 µM respectively. These tuneable Carbon Dots having wider solubilities would open a new avenue as Nanosensors for real-time applications.
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Affiliation(s)
- Pratibha Pansari
- Department of Chemistry and Biochemistry, School of Basic Sciences and Research, Sharda University, Greater Noida 201306, U.P., India
| | - Geeta Durga
- Department of Chemistry and Biochemistry, School of Basic Sciences and Research, Sharda University, Greater Noida 201306, U.P., India.
| | - Roopali Sharma
- Department of Chemistry and Biochemistry, School of Basic Sciences and Research, Sharda University, Greater Noida 201306, U.P., India
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Sahana S, Gautam A, Singh R, Chandel S. A recent update on development, synthesis methods, properties and application of natural products derived carbon dots. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:51. [PMID: 37953431 PMCID: PMC10641086 DOI: 10.1007/s13659-023-00415-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/01/2023] [Indexed: 11/14/2023]
Abstract
Natural resources are practically infinitely abundant in nature, which stimulates scientists to create new materials with inventive uses and minimal environmental impact. Due to the various benefits of natural carbon dots (NCDs) from them has received a lot of attention recently. Natural products-derived carbon dots have recently emerged as a highly promising class of nanomaterials, showcasing exceptional properties and eco-friendly nature, which make them appealing for diverse applications in various fields such as biomedical, environmental sensing and monitoring, energy storage and conversion, optoelectronics and photonics, agriculture, quantum computing, nanomedicine and cancer therapy. Characterization techniques such as Photoinduced electron transfer, Aggregation-Induced-Emission (AIE), Absorbance, Fluorescence in UV-Vis and NIR Regions play crucial roles in understanding the structural and optical properties of Carbon dots (CDs). The exceptional photoluminescence properties exhibited by CDs derived from natural products have paved the way for applications in tissue engineering, cancer treatment, bioimaging, sensing, drug delivery, photocatalysis, and promising remarkable advancements in these fields. In this review, we summarized the various synthesis methods, physical and optical properties, applications, challenges, future prospects of natural products-derived carbon dots etc. In this expanding sector, the difficulties and prospects for NCD-based materials research will also be explored.
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Affiliation(s)
- Soumitra Sahana
- Department of Pharmacognosy, ISF College of Pharmacy, Ghal-Kalan, Moga, Punjab, 142001, India
| | - Anupam Gautam
- Institute for Bioinformatics and Medical Informatics, University of Tübingen, Sand 14, 72076, Tübingen, Germany
- International Max Planck Research School "From Molecules to Organisms", Max Planck Institute for Biology Tübingen, Max-Planck-Ring 5, 72076, Tübingen, Germany
- Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, University of Tübingen, Tübingen, Germany
| | - Rajveer Singh
- Department of Pharmacognosy, ISF College of Pharmacy, Ghal-Kalan, Moga, Punjab, 142001, India.
| | - Shivani Chandel
- Department of Pharmacognosy, ISF College of Pharmacy, Ghal-Kalan, Moga, Punjab, 142001, India.
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3
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Zhao Y, Cheng G, Gao Y, Cui L, Zhao Y, Zhang Y, Tian Y, Zhao Y, Zhang Y, Qu H, Kong H. Green synthetic natural carbon dots derived from Fuligo Plantae with inhibitory effect against alcoholic gastric ulcer. Front Mol Biosci 2023; 10:1223621. [PMID: 37484528 PMCID: PMC10360179 DOI: 10.3389/fmolb.2023.1223621] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/29/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction: Fuligo Plantae (FP), the ash that sticks to the bottom of pots or chimneys after weeds burn, has long been used for its hemostatic effects and treatment of gastrointestinal bleeding. Nevertheless, the active ingredient of FP still needs to be further explored. Methods: The microstructure, optical and chemical properties of FP-CDs were characterized. An alcohol-induced gastric ulcer model was utilized to evaluate whether pre-administration of FP-CDs alleviated gastric bleeding symptoms and ameliorated gastric mucosal barrier disruption. In addition, the feces of each group of rats were extracted for 16S rDNA genome sequencing of intestinal flora. Results: FP-CDs with a diameter ranging from 1.4-3.2 nm had abundant chemical groups, which may be beneficial to the exertion of inherent activity. FP-CDs alleviated alcohol-induced gastric ulcer, as demonstrated by activating the extrinsic coagulation pathway, alleviating inflammation, and suppressing oxidative stress levels. More interestingly, FP-CDs can improve the diversity and dysbiosis of intestinal flora in rats with alcohol-induced gastric ulcer. Conclusion: These comes about illustrate the momentous inhibitory effects of FP-CDs on alcoholic gastric ulcer in rats, which give a modern methodology for investigating the effective ingredient of FP, and lay an experimental basis for the application of FP-CDs in the clinical treatment of alcoholic gastric ulcer.
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Affiliation(s)
- Yusheng Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Guoliang Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yushan Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Luming Cui
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yafang Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yifan Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yu Tian
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yue Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Huihua Qu
- Centre of Scientific Experiment, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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4
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Li J, Tan R, Bian X, Ge Z, Li J, Li Z, Liao L, Yang L, Zhang R, Zhou P. Design of carbon dots for bioimaging and behavior regulation of stem cells. Nanomedicine (Lond) 2023; 18:1109-1134. [PMID: 37610118 DOI: 10.2217/nnm-2023-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
Abstract
Carbon dots (CDs) have been widely used in bioimaging, biosensing and biotherapy because of their good biocompatibility, optical properties and stability. In this review, we comprehensively summarize the research on CDs in terms of synthesis methods, optical properties and biotoxicity. We describe and envisage the directions for CDs application in stem cell imaging and differentiation, with the aim of stimulating the design of future related CDs. We used 'carbon dots', 'stem cells', 'cell imaging', 'cell differentiation' and 'fate control' as keywords to search for important articles. The Web of Science database was used to extract vital information from a total of 357 papers, 126 review articles and 231 article proceedings within 12 years (2011-2022).
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Affiliation(s)
- Jing Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rongshuang Tan
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Xueru Bian
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhangjie Ge
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Jiamin Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhihui Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Lingzi Liao
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ling Yang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rui Zhang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ping Zhou
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
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Alshammari GM, Al-Ayed MS, Abdelhalim MA, Al-Harbi LN, Qasem AA, Abdo Yahya M. Development of luminescence carbon quantum dots for metal ions detection and photocatalytic degradation of organic dyes from aqueous media. ENVIRONMENTAL RESEARCH 2023; 226:115661. [PMID: 36913999 DOI: 10.1016/j.envres.2023.115661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
In the present study, fish scale waste was used for the organic synthesis of luminescence CQDs by the hydrothermal method. The impact of CQDs on improved photocatalytic degradation of organic dyes and metal ions detection is examined in this study. The synthesized CQDs had a variety of characteristics that were detected, such as crystallinity, morphology, functional groups, and binding energies. The luminescence CQDs showed outstanding photocatalytic effectiveness for the destruction of methylene blue (96.5%) and reactive red 120 dye (97.8%), respectively after 120 min exposure to visible light (420 nm). The high electron transport properties of the CQDs edges, which make it possible to efficiently separate electron-hole pairs, are attributed to the enhanced photocatalytic activity of the CQDs. These degradation results prove that the CQDs are the outcome of a synergistic interaction between visible light (adsorption); a potential mechanism is also suggested, and the kinetics is analyzed to use a pseudo-first-order model. Additionally, the metal ions detection of CQDs was studied by various metal ions (Hg2+, Fe2+, Cu2+, Ni2+, and Cd2+) in an aqueous solution and results revealed that the PL intensity of CQDs in presence of cadmium ions decreased. Studies show that the organic fabrication of CQDs are effective photocatalyst and may one day serve as the ideal material to reduce water pollution.
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Affiliation(s)
- Ghedeir Muslem Alshammari
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Mohammed Suliman Al-Ayed
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed Anwar Abdelhalim
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Laila Naif Al-Harbi
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Akram Ahmed Qasem
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammed Abdo Yahya
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
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6
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Novel Green Fluorescent Probe Stem From Carbon Quantum Dots for Specific Recognition of Tyrosinase in Serum and Living Cells. J Fluoresc 2023; 33:739-750. [PMID: 36515759 DOI: 10.1007/s10895-022-03101-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 11/21/2022] [Indexed: 12/15/2022]
Abstract
Tyrosinase (TYR), an important biomarker for melanoma, offered significant information early detection of melanoma and may decrease the likelihood of mortality. Therefore, this article constructed a highly sensitive and selective green fluorescent functionalized carbon quantum dots (TYR-CQDs) for tyrosinase (TYR) activity detection by one-step hydrothermal protocol utilizing catechol, citric acid and urea as precursors. The prepared TYR-CQDs illustrated excellent linear relationship and broad linear range with a low detection limit, which exhibited high accuracy and recovery in quantitative determination of TYR in human serum samples. Furthermore, the TYR-CQDs had successfully realized intracellular TYR detection owing to excellent biocompatibility, high anti-interference ability and good cellular imaging capability, suggesting the potential biomedical applications in early diagnosis of melanoma and other tyrosinase-related diseases.
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7
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A green “off–on” fluorescent sensor to detect Fe3+ and ATP using synthesized carbon dots from Rosehip. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04960-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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8
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Kumar JV, Kavitha G, Albasher G, Sajjad M, Arulmozhi R, Komal M, Nivetha MS, Abirami N. Multiplex heteroatoms doped carbon nano dots with enhanced catalytic reduction of ionic dyes and QR code security label for anti-spurious applications. CHEMOSPHERE 2022; 307:136003. [PMID: 35987265 DOI: 10.1016/j.chemosphere.2022.136003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/25/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Herein, a simple hydrothermal approach was used to make multiplex heteroatoms doped carbon dots from Tinospora cordifolia miers plant extract. Their ability to the catalytic activity of dyes and anti-spurious applications was evaluated. The formation of NBCNDs and source of (T. cordifolia miers) study the optical properties, and functional groups are investigated using UV-Visible spectroscopy and FT-IR techniques. The synthesized NBCNDs structure and elemental compositions were examined via HR-TEM, XRD, and XPS, respectively. According to the HRTEM images, the average particle size of the NBCNDs was around 4.3± 1 nm, with d-spacing of 0.19 nm. The obtained NBCNDs were exposed under 395 nm UV light to emit bluish-green tuneable fluorescence with QY (quantum yield) of 23.7%. The prepared NBCNDs as a potential catalyst for the AYR and CV dye reduction process using freshly prepared NaBH4, with determined rate constant values at 0.1220 and 0.1521 min-1, respectively. Lastly, we constructed a quick response (QR) code security label for anti-spurious applications using stencil techniques. The "confidential info" was encrypted using a QR code digital system, and the decryption was read using a smartphone under 365 nm light irradiation.
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Affiliation(s)
- J Vinoth Kumar
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - G Kavitha
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Gadah Albasher
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - R Arulmozhi
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - M Komal
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - M Sherlin Nivetha
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - N Abirami
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India.
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9
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Synthesis of blue emissive fluorescent nitrogen doped carbon dots from Annona squamosa fruit extract and their diverse applications in the field of catalysis and bio-imaging. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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10
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Carbon Functionalized Material Derived from Byproduct of Plasma Tar-Cracking Unit on Biomass Gasifier Collected Using Standard Impinger Method. Processes (Basel) 2022. [DOI: 10.3390/pr10091733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reduction of tar concentration in biomass gasification with secondary plasma tar cracking unit remains a challenge to meet the requirement for clean syngas energy applications. Typically, the post-treatment of syngas to reduce the tar from an updraft fixed-bed reactor is using secondary plasma tar cracking unit. In this study, an additional trapping train was introduced as a mechanism to harvest byproducts of the tar decomposition process (byproduct carbon functionalized material or BCFM). The measurement in gravimetric and particle size distribution, supported by photoluminescent (PL) and Fourier transform infrared spectroscopy (FT–IR) of BCFM, were conducted to reveal the BCFM characteristic. The gravimetric analysis showed that the application of the secondary plasma tar cracking unit highly reduced the tar concentration. Similarly, the average particle size also decreased significantly. The peak emission spectra of the suspended BCFM particle under the plasma cracking treatment shifted from around 500 nm to around 400 nm. The significant changes in the BCFM functional group occurred due to the successful cracking process. It was concluded that the byproduct received from the plasma cracking process resulted in very low tar content and was revealed to be a carbon functionalized material with a very small size (16.2 nm) and stable suspension.
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11
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González-González RB, Morales-Murillo MB, Martínez-Prado MA, Melchor-Martínez EM, Ahmed I, Bilal M, Parra-Saldívar R, Iqbal HMN. Carbon dots-based nanomaterials for fluorescent sensing of toxic elements in environmental samples: Strategies for enhanced performance. CHEMOSPHERE 2022; 300:134515. [PMID: 35398070 DOI: 10.1016/j.chemosphere.2022.134515] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/21/2022] [Accepted: 04/01/2022] [Indexed: 02/08/2023]
Abstract
Rapid industrialization and manufacturing expansion have caused heavy metal pollution, which is a critical environmental issue faced by global population. In addition, the disadvantages presented by conventional detection methods such as the requirement of sophisticated instruments and qualified personnel have led to the development of novel nanosensors. Recently, carbon dots (CDs) have been presented as a multifunctional nanomaterial alternative for the accurate detection of heavy metal ions in water systems. The capacity of CDs to detect contaminants in wastewater -including heavy metals- can be found in the literature; however, to the best of our knowledge, none of them discusses the most recent strategies to enhance their performance. Therefore, in this review, beyond presenting successful examples of the use of CDs for the detection of metal ions, we further discuss the strategies to enhance their photoluminescence properties and their performance for environmental monitoring. In this manner, strategies such as heteroatom-doping and surface passivation are reviewed in detail, as well as describing the mechanisms and the effect of precursors and synthesis methods. Finally, the current challenges are described in detail to propose some recommendations for further research.
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Affiliation(s)
| | - Martha Beatriz Morales-Murillo
- Tecnológico Nacional de México - Instituto Tecnológico de Durango, Chemical & Biochemical Engineering Department, Blvd. Felipe Pescador 1830 Ote., Durango, Dgo., 34080, Mexico
| | - María Adriana Martínez-Prado
- Tecnológico Nacional de México - Instituto Tecnológico de Durango, Chemical & Biochemical Engineering Department, Blvd. Felipe Pescador 1830 Ote., Durango, Dgo., 34080, Mexico
| | | | - Ishtiaq Ahmed
- School of Medical Science, Menzies Health Institute Queensland, Griffith University (Gold Coast campus), Parklands Drive, Southport, QLD, 4222, Australia
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | | | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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12
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Malavika JP, Shobana C, Sundarraj S, Ganeshbabu M, Kumar P, Selvan RK. Green synthesis of multifunctional carbon quantum dots: An approach in cancer theranostics. BIOMATERIALS ADVANCES 2022; 136:212756. [PMID: 35929302 DOI: 10.1016/j.bioadv.2022.212756] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 05/26/2023]
Abstract
Carbon quantum dots (CQDs) have gained significant growing attention in the recent past due to their peculiar characteristics including smaller size, high surface area, photoluminescence, chemical stability, facile synthesis and functionalization possibilities. They are carbon nanostructures having less than 10 nm size with fluorescent properties. In recent years, the scientific community is curiously adopting biomass precursors for the preparation of CQDs over the chemical compounds. These biomass sources are sustainable, eco-friendly, inexpensive, widely available and convert waste into valuable materials. Hence in our work the fundamental understating of diverse fabrication methodologies of CQDs, and the types of raw materials employed in recent times, are all examined and correlated comprehensively. Their unique combination of remarkable properties, together with the ease with which they can be fabricated, makes CQDs as promising materials for applications in diverse biomedical fields, in particular for bio-imaging, targeted drug delivery and phototherapy for cancer treatment. The mechanism for luminescence is of considerable significance for leading the synthesis of CQDs with tunable fluorescence emission. Therefore, it is aimed to explore and provide an updated review on (i) the recent progress on the different synthesis methods of biomass-derived CQDs, (ii) the contribution of surface states or functional groups on the luminescence origin and (iii) its potential application for cancer theranostics, concentrating on their fluorescence properties. Finally, we explored the challenges in modification for the synthesis of CQDs from biomass derivatives and the future scope of CQDs in phototherapy for cancer theranostics.
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Affiliation(s)
- Jalaja Prasad Malavika
- Department of Zoology, Kongunadu Arts and Science College (Autonomous), G. N. Mills, Coimbatore 641 029, Tamil Nadu, India
| | - Chellappan Shobana
- Department of Zoology, Kongunadu Arts and Science College (Autonomous), G. N. Mills, Coimbatore 641 029, Tamil Nadu, India.
| | - Shenbagamoorthy Sundarraj
- Department of Zoology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi - 626 124, Virudhunagar District, Tamil Nadu, India.
| | - Mariappan Ganeshbabu
- Department of Physics, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Ponnuchamy Kumar
- Department of Animal Health and Management, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
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Mansuriya BD, Altintas Z. Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care-An Updated Review (2018-2021). NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2525. [PMID: 34684966 PMCID: PMC8541690 DOI: 10.3390/nano11102525] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022]
Abstract
Carbon dots (CDs) are usually smaller than 10 nm in size, and are meticulously formulated and recently introduced nanomaterials, among the other types of carbon-based nanomaterials. They have gained significant attention and an incredible interest in the field of nanotechnology and biomedical science, which is merely due to their considerable and exclusive attributes; including their enhanced electron transferability, photobleaching and photo-blinking effects, high photoluminescent quantum yield, fluorescence property, resistance to photo-decomposition, increased electrocatalytic activity, good aqueous solubility, excellent biocompatibility, long-term chemical stability, cost-effectiveness, negligible toxicity, and acquaintance of large effective surface area-to-volume ratio. CDs can be readily functionalized owing to the abundant functional groups on their surfaces, and they also exhibit remarkable sensing features such as specific, selective, and multiplex detectability. In addition, the physico-chemical characteristics of CDs can be easily tunable based on their intended usage or application. In this comprehensive review article, we mainly discuss the classification of CDs, their ideal properties, their general synthesis approaches, and primary characterization techniques. More importantly, we update the readers about the recent trends of CDs in health care applications (viz., their substantial and prominent role in the area of electrochemical and optical biosensing, bioimaging, drug/gene delivery, as well as in photodynamic/photothermal therapy).
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Affiliation(s)
| | - Zeynep Altintas
- Institute of Chemistry, Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany;
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14
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Vinoth Kumar J, Kavitha G, Arulmozhi R, Arul V, Abirami N. Cyan color-emitting nitrogen-functionalized carbon nanodots (NFCNDs) from Indigofera tinctoria and their catalytic reduction of organic dyes and fluorescent ink applications. RSC Adv 2021; 11:27745-27756. [PMID: 35480636 PMCID: PMC9037855 DOI: 10.1039/d1ra04351j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/28/2021] [Indexed: 12/16/2022] Open
Abstract
The present study reports the synthesis of nitrogen-functionalized carbon nanodots (NFCNDs) by a low-cost hydrothermal method using the leaf extract of Indigofera tinctoria as a novel carbon precursor. The synthesized NFCNDs were characterized by diverse spectroscopic techniques. The optical properties of N-CNDs were analyzed by UV-visible and fluorescence spectroscopic studies. The quantum yield (QY) for the prepared NFCNDs was found to be 12.6%. The surface morphology, functional groups, and crystallinity of NFCNDs were evaluated by HR-TEM, FT-IR, XRD and Raman spectroscopic methods, respectively. The Raman results revealed the moderate graphite structure of NFCNDs, and the calculated I D/I G value was 0.49. The spherical appearance of the synthesized NFCNDs was confirmed by HR-TEM, and the calculated size of the NFCNDs was 4 nm. The XRD and SAED pattern results gives an evidence for the amorphous nature of the prepared NFCNDs. The thermal stability of NFCNDs was studied by TGA analysis. The resulting NFCNDs acted as a green nanocatalyst and thus efficiently improved the reducing capability of sodium borohydride (NaBH4) in the catalytic reduction of methylene blue (MB) and methyl orange (MO) dyes. Furthermore, the bright cyan emission characteristics of synthesized NFCNDs were utilized as a labeling agent in anti-counterfeiting applications.
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Affiliation(s)
- Jothi Vinoth Kumar
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Tamil Nadu-603 203 India
| | - Ganesan Kavitha
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Tamil Nadu-603 203 India
| | - Rajaram Arulmozhi
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Tamil Nadu-603 203 India
| | - Velusamy Arul
- Department of Science and Humanities, Sri Venkateswaraa College of Technology Vadkkal, Sriperumbudur Chennai-602 105 Tamil Nadu India
| | - Natarajan Abirami
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Tamil Nadu-603 203 India
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