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Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity
Carbon dots (CDs) have been widely used as antimicrobials due to their active surface, but some CDs suffer instability. Therefore, the relative applications such as the antibacterial activity may not be reliable for long-term use. Herein, we synthesize CDs with blue fluorescence by a hydrothermal pr...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8322205/ https://www.ncbi.nlm.nih.gov/pubmed/34324080 http://dx.doi.org/10.1186/s11671-021-03582-3 |
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author | Zhuang, Pengfei Li, Kuo Li, Daoyong Qiao, Haixia E, Yifeng Wang, Mingqun Sun, Jiachen Mei, Xifan Li, Dan |
author_facet | Zhuang, Pengfei Li, Kuo Li, Daoyong Qiao, Haixia E, Yifeng Wang, Mingqun Sun, Jiachen Mei, Xifan Li, Dan |
author_sort | Zhuang, Pengfei |
collection | PubMed |
description | Carbon dots (CDs) have been widely used as antimicrobials due to their active surface, but some CDs suffer instability. Therefore, the relative applications such as the antibacterial activity may not be reliable for long-term use. Herein, we synthesize CDs with blue fluorescence by a hydrothermal process. Thereafter, polyethylenimine was applied for the assembly of CDs into CDs-based frameworks (CDFs). The CDFs exhibited quenched fluorescence but showed more stable properties based on the scanning electron microscope and zeta potential investigations. Both CDs and CDFs show antibacterial activity toward Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus), but CDFs exhibited better antibacterial performance, and S. aureus could be completely inhibited with the minimum inhibitory concentration of 30 μg/mL. This reveals CDFs magnify both the stability and antibacterial activity, which would be more promising for practical applications. GRAPHIC ABSTRACT: [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s11671-021-03582-3. |
format | Online Article Text |
id | pubmed-8322205 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-83222052021-08-19 Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity Zhuang, Pengfei Li, Kuo Li, Daoyong Qiao, Haixia E, Yifeng Wang, Mingqun Sun, Jiachen Mei, Xifan Li, Dan Nanoscale Res Lett Nano Express Carbon dots (CDs) have been widely used as antimicrobials due to their active surface, but some CDs suffer instability. Therefore, the relative applications such as the antibacterial activity may not be reliable for long-term use. Herein, we synthesize CDs with blue fluorescence by a hydrothermal process. Thereafter, polyethylenimine was applied for the assembly of CDs into CDs-based frameworks (CDFs). The CDFs exhibited quenched fluorescence but showed more stable properties based on the scanning electron microscope and zeta potential investigations. Both CDs and CDFs show antibacterial activity toward Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus), but CDFs exhibited better antibacterial performance, and S. aureus could be completely inhibited with the minimum inhibitory concentration of 30 μg/mL. This reveals CDFs magnify both the stability and antibacterial activity, which would be more promising for practical applications. GRAPHIC ABSTRACT: [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s11671-021-03582-3. Springer US 2021-07-29 /pmc/articles/PMC8322205/ /pubmed/34324080 http://dx.doi.org/10.1186/s11671-021-03582-3 Text en © The Author(s) 2021, Article corrected in 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Nano Express Zhuang, Pengfei Li, Kuo Li, Daoyong Qiao, Haixia E, Yifeng Wang, Mingqun Sun, Jiachen Mei, Xifan Li, Dan Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title | Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title_full | Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title_fullStr | Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title_full_unstemmed | Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title_short | Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity |
title_sort | assembly of carbon dots into frameworks with enhanced stability and antibacterial activity |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8322205/ https://www.ncbi.nlm.nih.gov/pubmed/34324080 http://dx.doi.org/10.1186/s11671-021-03582-3 |
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