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Dubey P. An overview on animal/human biomass-derived carbon dots for optical sensing and bioimaging applications. RSC Adv 2023; 13:35088-35126. [PMID: 38046631 PMCID: PMC10690874 DOI: 10.1039/d3ra06976a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023] Open
Abstract
Over the past decade, carbon dots (CDs) have emerged as some of the extremely popular carbon nanostructures for diverse applications. The advantages of sustainable CDs, characterized by their exceptional photoluminescence (PL), high water solubility/dispersibility, non-toxicity, and biocompatibility, substantiate their potential for a wide range of applications in sensing and biology. Moreover, nature offers plant- and animal-derived precursors for the sustainable synthesis of CDs and their doped variants. These sources are not only readily accessible, inexpensive, and renewable but are also environmentally benign green biomass. This review article presents in detail the production of sustainable CDs from various animal and human biomass through bottom-up synthetic methods, including hydrothermal, microwave, microwave-hydrothermal, and pyrolysis methods. The resulting CDs exhibit a uniform size distribution, possibility of heteroatom doping, surface passivation, and remarkable excitation wavelength-dependent/independent emission and up-conversion PL characteristics. Consequently, these CDs have been successfully utilized in multiple applications, such as bioimaging and the detection of various analytes, including heavy metal ions. Finally, a comprehensive assessment is presented, highlighting the prospects and challenges associated with animal/human biomass-derived CDs for multifaceted applications.
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Affiliation(s)
- Prashant Dubey
- Centre of Material Sciences, Institute of Interdisciplinary Studies (IIDS), University of Allahabad Prayagraj-211002 Uttar Pradesh India
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Sawalha S, Abdallah S, Barham A, Badawi H, Barham Z, Ghareeb A, Misia G, Collavini S, Silvestri A, Prato M, Assali M. Green synthesis of fluorescent carbon nanodots from sage leaves for selective anticancer activity on 2D liver cancer cells and 3D multicellular tumor spheroids. NANOSCALE ADVANCES 2023; 5:5974-5982. [PMID: 37881717 PMCID: PMC10597557 DOI: 10.1039/d3na00269a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 09/17/2023] [Indexed: 10/27/2023]
Abstract
Carbon nanodots, a family of carbon-based nanomaterials, have been synthesized through different methods from various resources, affecting the properties of the resulting product and their application. Herein, carbon nanodots (CNDs) were synthesized with a green and simple hydrothermal method from sage leaves at 200 °C for 6 hours. The obtained CNDs are well dispersed in water with a negative surface charge (ζ-potential = -11 mV) and an average particle size of 3.6 nm. The synthesized CNDs showed concentration-dependent anticancer activity toward liver cancer (Hep3B) cell lines and decreased the viability of the cancer cells to 23% at the highest used concentration (250 μg ml-1 of CNDs). More interestingly, the cytotoxicity of the CNDs was tested in normal liver cell lines (LX2) revealed that the CNDs at all tested concentrations didn't affect their viability including at the highest concentration showing a viability of 86.7%. The cellular uptake mechanisms of CNDs were investigated and they are thought to be through energy-dependent endocytosis and also through passive diffusion. The main mechanisms of endocytosis were lipid and caveolae-mediated endocytosis. In addition, the CNDs have hindered the formation of 3D spheroids from the Hep3B hepatocellular carcinoma cell line. Hence, it would be concluded that the synthesized CNDs from sage are more highly selective to liver cancer cells than normal ones. The CNDs' cancer-killing ability would be referred to as the production of reactive oxygen species.
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Affiliation(s)
- Shadi Sawalha
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Samer Abdallah
- Department of Biology and Biotechnology, Faculty of Science, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Amal Barham
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Hala Badawi
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Zeina Barham
- Chemical Engineering Program, Faculty of Engineering and Information Technology, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Ahmad Ghareeb
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University P.O. Box 7 Nablus Palestine
| | - Giuseppe Misia
- Department of Chemical and Pharmaceutical Sciences INSTM UdR Trieste, University of Trieste via Licio Giorgieri 1 34127 Trieste Italy
| | - Silvia Collavini
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA) Donostia-San Sebastián 20014 Spain
| | - Alessandro Silvestri
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice Venezia 30170 Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences INSTM UdR Trieste, University of Trieste via Licio Giorgieri 1 34127 Trieste Italy
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA) Donostia-San Sebastián 20014 Spain
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University P.O. Box 7 Nablus Palestine
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Vyas Y, Chundawat P, Dharmendra D, Chaubisa P, Kumar M, Punjabi PB, Ameta C. Revolutionizing fuel production through biologically synthesized zero-dimensional nanoparticles. NANOSCALE ADVANCES 2023; 5:4833-4851. [PMID: 37705808 PMCID: PMC10496885 DOI: 10.1039/d3na00268c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/28/2023] [Indexed: 09/15/2023]
Abstract
The sustainable management of wastewater and the production of clean fuel with a reduced carbon footprint require innovative methods, including photocatalytic degradation of pollutants and hydrogen generation. To achieve this, biosynthesized photocatalysts are necessary, with carbon quantum dots (CQDs) being a promising candidate for achieving this goal. In this study, CQDs were prepared from water caltrop peels and a composite of greenly synthesized CQDs with copper selenide (CuSe) was used for the photocatalytic degradation of pollutants and production of fuel. Thymol blue (TB) and Congo red (CR) were chosen as model dyes for degradation studies, with optimized reaction conditions being determined by varying the dose, pH, intensity, and concentration of dyes. The composite (CuSe@CQDs) showed a degradation rate of 99.4% and 97.8% for TB and CR, respectively, within 60 minutes, with a corresponding hydrogen production rate of 2360 and 1875 μmol g-1 h-1. The yield of hydrogen production using the composite was 35.7 and 29 times greater than that of CuSe alone for TB and CR, respectively. Spectroscopic techniques such as XRD, UV-Vis, FESEM, HRTEM, XPS, FTIR, BET, and TGA were used to characterize the composite, and the results revealed that the composite had superior degradation rates compared to CuSe alone, with the degradation rate being enhanced by about three times. GCMS analysis was used to investigate the intermediate and possible degradation pathways. Overall, this study highlights the potential of biosynthesized CQDs as effective photocatalysts for the sustainable management of wastewater and production of fuel.
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Affiliation(s)
- Yogeshwari Vyas
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
| | - Priyanka Chundawat
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
| | - Dharmendra Dharmendra
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
| | - Purnima Chaubisa
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
| | - Mukesh Kumar
- Department of Chemistry, Sahu Jain Degree College, Affiliated toM. J. P. Rohilkhand University, Bareilly Najibabad Bijnor-246763 India
| | - Pinki B Punjabi
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
| | - Chetna Ameta
- Photochemistry Laboratory, Department of Chemistry, University College of Science, M.L. Sukhadia University Udaipur-313001 Rajasthan India
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Sawalha S, Assali M, Raddad M, Ghneem T, Sawalhi T, Almasri M, Zarour A, Misia G, Prato M, Silvestri A. Broad-Spectrum Antibacterial Activity of Synthesized Carbon Nanodots from d-Glucose. ACS APPLIED BIO MATERIALS 2022; 5:4860-4872. [PMID: 36100469 DOI: 10.1021/acsabm.2c00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbon nanodots, a class of carbon nano-allotropes, have been synthesized through different routes and methods from a wide range of precursors. The selected precursor, synthetic method, and conditions can strongly alter the physicochemical properties of the resulting material and their intended applications. Herein, carbon nanodots (CNDs) have been synthesized from d-glucose by combining pyrolysis and chemical oxidation methods. The effect of the pyrolysis temperature, equivalents of oxidizing agent, and refluxing time were studied on the product and quantum yield. In the optimum conditions (pyrolysis temperature of 300 °C, 4.41 equiv of H2O2, 90 min of reflux) CNDs were obtained with 40% and 3.6% of product and quantum yields, respectively. The obtained CNDs are negatively charged (ζ-potential = -32 mV), excellently dispersed in water, with average diameter of 2.2 nm. Furthermore, ammonium hydroxide (NH4OH) was introduced as dehydrating and/or passivation agent during CNDs synthesis resulting in significant improvement of both product and quantum yields of about 1.5 and 3.76-fold, respectively. The synthesized CNDs showed a broad spectrum of antibacterial activities toward different Gram-positive and Gram-negative bacteria strains. Both synthesized CNDs caused highly colony forming unit reduction (CFU), ranging from 98% to 99.99% for most of the tested bacterial strains. However, CNDs synthesized in the absence of NH4OH, due to a negatively charged surface enriched in oxygenated groups, performed better in zone inhibition and minimum inhibitory concentration. The elevated antibacterial activity of high-oxygen-containing carbon nanodots is directly correlated to their ROS formation ability.
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Affiliation(s)
- Shadi Sawalha
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Muna Raddad
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Tasneem Ghneem
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Tasneem Sawalhi
- Department of Chemical Engineering, An-Najah National University, Nablus, P400, Palestine
| | - Motasem Almasri
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Abdulraziq Zarour
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P400, Palestine
| | - Giuseppe Misia
- Department of Chemical and Pharmaceutical Sciences, Universitá degli Studi di Trieste, Trieste, 34127, Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, Universitá degli Studi di Trieste, Trieste, 34127, Italy
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, 20014, Spain
| | - Alessandro Silvestri
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, 20014, Spain
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Recent Advances in Synthesis, Modification, Characterization, and Applications of Carbon Dots. Polymers (Basel) 2022; 14:polym14112153. [PMID: 35683827 PMCID: PMC9183192 DOI: 10.3390/polym14112153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/22/2022] [Accepted: 05/22/2022] [Indexed: 02/06/2023] Open
Abstract
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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