Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging
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2020
Authors
Marković, Z.M.Labudová, M.
Danko, Martin
Matijašević, D.
Mičušík, M.
Nádaždy, V.
Kováčová, M.
Kleinova, Angela
Špitalský, Z.
Pavlović, Vladimir
Milivojević, Dušan D.
Medić, Mira
Todorović-Marković, B.M.
Article (Published version)
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The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, sodium chloride, urea, and citric acid as the starting precursors. Microscopy analysis reveals that the average size of these quantum dots is 5 ± 2 nm, whereas the chemical study shows the existence of C-F and C-Cl bonds. The produced F- and Cl-doped CQDs have fluorescence quantum yields of 0.151 and 0.284, respectively, at an excitation wavelength of 450 nm. Charge transfer resistance of F- and Cl-doped CQDs films is 2 orders of magnitude higher than in the pristine CQD films. Transport band gap of the doped CQDs is 2 eV bigger than that of pristine CQDs. Radical scavenging activity shows very good antioxidant activity of doped CQDs. Antibacterial testing reveals poor antibacterial activity against Staphylococcus aureus and Escherichia coli.... The F- and Cl-doped CQDs are successfully used as fluorescent probes for cell imaging as shown by confocal microscopy.
Keywords:
antioxidant activity / chlorine-doped carbon quantum dots / fluorescent probe for cell imaging / fluorine-doped carbon quantum dots / pro-oxidant activitySource:
ACS Sustainable Chemistry and Engineering, 2020Publisher:
- American Chemical Society
Funding / projects:
- Authors Z.M.M. and B.M.T.M. thank for support by the Ministry of Education, Science and Technological Development of the Republic of Serbia (451-03-2/2020-14/20-0302002).
DOI: 10.1021/acssuschemeng.0c06260
ISSN: 2168-0485
WoS: 000588740300026
Scopus: 2-s2.0-85095880054
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Poljoprivredni fakultetTY - JOUR AU - Marković, Z.M. AU - Labudová, M. AU - Danko, Martin AU - Matijašević, D. AU - Mičušík, M. AU - Nádaždy, V. AU - Kováčová, M. AU - Kleinova, Angela AU - Špitalský, Z. AU - Pavlović, Vladimir AU - Milivojević, Dušan D. AU - Medić, Mira AU - Todorović-Marković, B.M. PY - 2020 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5422 AB - The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, sodium chloride, urea, and citric acid as the starting precursors. Microscopy analysis reveals that the average size of these quantum dots is 5 ± 2 nm, whereas the chemical study shows the existence of C-F and C-Cl bonds. The produced F- and Cl-doped CQDs have fluorescence quantum yields of 0.151 and 0.284, respectively, at an excitation wavelength of 450 nm. Charge transfer resistance of F- and Cl-doped CQDs films is 2 orders of magnitude higher than in the pristine CQD films. Transport band gap of the doped CQDs is 2 eV bigger than that of pristine CQDs. Radical scavenging activity shows very good antioxidant activity of doped CQDs. Antibacterial testing reveals poor antibacterial activity against Staphylococcus aureus and Escherichia coli. The F- and Cl-doped CQDs are successfully used as fluorescent probes for cell imaging as shown by confocal microscopy. PB - American Chemical Society T2 - ACS Sustainable Chemistry and Engineering T1 - Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging DO - 10.1021/acssuschemeng.0c06260 ER -
@article{ author = "Marković, Z.M. and Labudová, M. and Danko, Martin and Matijašević, D. and Mičušík, M. and Nádaždy, V. and Kováčová, M. and Kleinova, Angela and Špitalský, Z. and Pavlović, Vladimir and Milivojević, Dušan D. and Medić, Mira and Todorović-Marković, B.M.", year = "2020", abstract = "The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, sodium chloride, urea, and citric acid as the starting precursors. Microscopy analysis reveals that the average size of these quantum dots is 5 ± 2 nm, whereas the chemical study shows the existence of C-F and C-Cl bonds. The produced F- and Cl-doped CQDs have fluorescence quantum yields of 0.151 and 0.284, respectively, at an excitation wavelength of 450 nm. Charge transfer resistance of F- and Cl-doped CQDs films is 2 orders of magnitude higher than in the pristine CQD films. Transport band gap of the doped CQDs is 2 eV bigger than that of pristine CQDs. Radical scavenging activity shows very good antioxidant activity of doped CQDs. Antibacterial testing reveals poor antibacterial activity against Staphylococcus aureus and Escherichia coli. The F- and Cl-doped CQDs are successfully used as fluorescent probes for cell imaging as shown by confocal microscopy.", publisher = "American Chemical Society", journal = "ACS Sustainable Chemistry and Engineering", title = "Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging", doi = "10.1021/acssuschemeng.0c06260" }
Marković, Z.M., Labudová, M., Danko, M., Matijašević, D., Mičušík, M., Nádaždy, V., Kováčová, M., Kleinova, A., Špitalský, Z., Pavlović, V., Milivojević, D. D., Medić, M.,& Todorović-Marković, B.M.. (2020). Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging. in ACS Sustainable Chemistry and Engineering American Chemical Society.. https://doi.org/10.1021/acssuschemeng.0c06260
Marković Z, Labudová M, Danko M, Matijašević D, Mičušík M, Nádaždy V, Kováčová M, Kleinova A, Špitalský Z, Pavlović V, Milivojević DD, Medić M, Todorović-Marković B. Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging. in ACS Sustainable Chemistry and Engineering. 2020;. doi:10.1021/acssuschemeng.0c06260 .
Marković, Z.M., Labudová, M., Danko, Martin, Matijašević, D., Mičušík, M., Nádaždy, V., Kováčová, M., Kleinova, Angela, Špitalský, Z., Pavlović, Vladimir, Milivojević, Dušan D., Medić, Mira, Todorović-Marković, B.M., "Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging" in ACS Sustainable Chemistry and Engineering (2020), https://doi.org/10.1021/acssuschemeng.0c06260 . .