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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...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875257/ https://www.ncbi.nlm.nih.gov/pubmed/35215002 http://dx.doi.org/10.3390/nano12040674 |
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author | Stachowska, Joanna D. Gamża, Monika B. Mellor, Claire Gibbons, Ella N. Krysmann, Marta J. Kelarakis, Antonios Gumieniczek-Chłopek, Elżbieta Strączek, Tomasz Kapusta, Czesław Szwajca, Anna |
author_facet | Stachowska, Joanna D. Gamża, Monika B. Mellor, Claire Gibbons, Ella N. Krysmann, Marta J. Kelarakis, Antonios Gumieniczek-Chłopek, Elżbieta Strączek, Tomasz Kapusta, Czesław Szwajca, Anna |
author_sort | Stachowska, Joanna D. |
collection | PubMed |
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. |
format | Online Article Text |
id | pubmed-8875257 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88752572022-02-26 Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties Stachowska, Joanna D. Gamża, Monika B. Mellor, Claire Gibbons, Ella N. Krysmann, Marta J. Kelarakis, Antonios Gumieniczek-Chłopek, Elżbieta Strączek, Tomasz Kapusta, Czesław Szwajca, Anna Nanomaterials (Basel) Article 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. MDPI 2022-02-17 /pmc/articles/PMC8875257/ /pubmed/35215002 http://dx.doi.org/10.3390/nano12040674 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Stachowska, Joanna D. Gamża, Monika B. Mellor, Claire Gibbons, Ella N. Krysmann, Marta J. Kelarakis, Antonios Gumieniczek-Chłopek, Elżbieta Strączek, Tomasz Kapusta, Czesław Szwajca, Anna Carbon Dots/Iron Oxide Nanoparticles with Tuneable Composition and Properties |
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 | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8875257/ https://www.ncbi.nlm.nih.gov/pubmed/35215002 http://dx.doi.org/10.3390/nano12040674 |
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