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Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging
dc.creator | Marković, Z.M. | |
dc.creator | Labudová, M. | |
dc.creator | Danko, Martin | |
dc.creator | Matijašević, D. | |
dc.creator | Mičušík, M. | |
dc.creator | Nádaždy, V. | |
dc.creator | Kováčová, M. | |
dc.creator | Kleinova, Angela | |
dc.creator | Špitalský, Z. | |
dc.creator | Pavlović, Vladimir | |
dc.creator | Milivojević, Dušan D. | |
dc.creator | Medić, Mira | |
dc.creator | Todorović-Marković, B.M. | |
dc.date.accessioned | 2020-12-17T22:59:36Z | |
dc.date.available | 2020-12-17T22:59:36Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 2168-0485 | |
dc.identifier.uri | http://aspace.agrif.bg.ac.rs/handle/123456789/5422 | |
dc.description.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. | en |
dc.publisher | American Chemical Society | |
dc.relation | 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). | |
dc.rights | restrictedAccess | |
dc.source | ACS Sustainable Chemistry and Engineering | |
dc.subject | antioxidant activity | en |
dc.subject | chlorine-doped carbon quantum dots | en |
dc.subject | fluorescent probe for cell imaging | en |
dc.subject | fluorine-doped carbon quantum dots | en |
dc.subject | pro-oxidant activity | en |
dc.title | Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.rank | aM21 | |
dc.identifier.doi | 10.1021/acssuschemeng.0c06260 | |
dc.identifier.scopus | 2-s2.0-85095880054 | |
dc.identifier.wos | 000588740300026 | |
dc.type.version | publishedVersion |