Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties
We present a simple strategy to generate a family of carbon dots/iron oxide nanoparticles (C/Fe-NPs) that relies on the thermal decomposition of iron (III) acetylacetonate in the presence of a highly fluorescent carbon-rich precursor (derived via thermal treatment of ethanolamine and citric acid at...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/4/674 |
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| author | Joanna D. Stachowska Monika B. Gamża Claire Mellor Ella N. Gibbons Marta J. Krysmann Antonios Kelarakis Elżbieta Gumieniczek-Chłopek Tomasz Strączek Czesław Kapusta Anna Szwajca |
| author_facet | Joanna D. Stachowska Monika B. Gamża Claire Mellor Ella N. Gibbons Marta J. Krysmann Antonios Kelarakis Elżbieta Gumieniczek-Chłopek Tomasz Strączek Czesław Kapusta Anna Szwajca |
| author_sort | Joanna D. Stachowska |
| collection | DOAJ |
| description | We present a simple strategy to generate a family of carbon dots/iron oxide nanoparticles (C/Fe-NPs) that relies on the thermal decomposition of iron (III) acetylacetonate in the presence of a highly fluorescent carbon-rich precursor (derived via thermal treatment of ethanolamine and citric acid at 180 °C), while polyethylene glycol serves as the passivation agent. By varying the molar ratio of the reactants, a series of C/Fe-NPs have been synthesized with tuneable elemental composition in terms of C, H, O, N and Fe. The quantum yield is enhanced from 6 to 9% as the carbon content increases from 27 to 36 wt%, while the room temperature saturation magnetization is improved from 4.1 to 17.7 emu/g as the iron content is enriched from 17 to 31 wt%. In addition, the C/Fe-NPs show excellent antimicrobial properties, minimal cytotoxicity and demonstrate promising bioimaging capabilities, thus showing great potential for the development of advanced diagnostic tools. |
| first_indexed | 2024-03-09T21:18:38Z |
| format | Article |
| id | doaj.art-30a507681b634d84a17ded49791c7edf |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:18:38Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-30a507681b634d84a17ded49791c7edf2023-11-23T21:26:17ZengMDPI AGNanomaterials2079-49912022-02-0112467410.3390/nano12040674Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and PropertiesJoanna D. Stachowska0Monika B. Gamża1Claire Mellor2Ella N. Gibbons3Marta J. Krysmann4Antonios Kelarakis5Elżbieta Gumieniczek-Chłopek6Tomasz Strączek7Czesław Kapusta8Anna Szwajca9School of Dentistry, University of Central Lancashire, Preston PR1 2HE, UKJeremiah Horrocks Institute for Mathematics, Physics, and Astrophysics, University of Central Lancashire, Preston PR1 2HE, UKSchool of Phycology and Computer Science, University of Central Lancashire, Preston PR1 2HE, UKSchool of Dentistry, University of Central Lancashire, Preston PR1 2HE, UKSchool of Dentistry, University of Central Lancashire, Preston PR1 2HE, UKUCLan Research Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston PR1 2HE, UKFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, PolandFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, PolandFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, PolandFaculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, PolandWe present a simple strategy to generate a family of carbon dots/iron oxide nanoparticles (C/Fe-NPs) that relies on the thermal decomposition of iron (III) acetylacetonate in the presence of a highly fluorescent carbon-rich precursor (derived via thermal treatment of ethanolamine and citric acid at 180 °C), while polyethylene glycol serves as the passivation agent. By varying the molar ratio of the reactants, a series of C/Fe-NPs have been synthesized with tuneable elemental composition in terms of C, H, O, N and Fe. The quantum yield is enhanced from 6 to 9% as the carbon content increases from 27 to 36 wt%, while the room temperature saturation magnetization is improved from 4.1 to 17.7 emu/g as the iron content is enriched from 17 to 31 wt%. In addition, the C/Fe-NPs show excellent antimicrobial properties, minimal cytotoxicity and demonstrate promising bioimaging capabilities, thus showing great potential for the development of advanced diagnostic tools.https://www.mdpi.com/2079-4991/12/4/674magnetizationphotoluminescencecarbon dotsmagnetic nanoparticlesantimicrobial |
| spellingShingle | Joanna D. Stachowska Monika B. Gamża Claire Mellor Ella N. Gibbons Marta J. Krysmann Antonios Kelarakis Elżbieta Gumieniczek-Chłopek Tomasz Strączek Czesław Kapusta Anna Szwajca Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties Nanomaterials magnetization photoluminescence carbon dots magnetic nanoparticles antimicrobial |
| title | Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
| title_full | Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
| title_fullStr | Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
| title_full_unstemmed | Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
| title_short | Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
| title_sort | carbon dots iron oxide nanoparticles with tuneable composition and properties |
| topic | magnetization photoluminescence carbon dots magnetic nanoparticles antimicrobial |
| url | https://www.mdpi.com/2079-4991/12/4/674 |
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