Conversion of antibacterial activity of graphene‐coated textiles through surface polarity
Abstract Graphene is emerging in numerous wearable and biomedical applications. Understanding the impact of graphene‐based nanocomposites over bacterial activity is critical for design appropriate technical solutions. In this work, antibacterial activity of monolayer and few‐layer graphene is tested...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-08-01
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| Series: | Nano Select |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/nano.202100226 |
| _version_ | 1797752104009334784 |
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| author | Daniela P. Rodrigues Catarina Moreirinha Gopika Rajan Ana I. S. Neves Sidónio C. Freitas Sara Sequeira Saverio Russo Monica F. Craciun Adelaide Almeida Helena Alves |
| author_facet | Daniela P. Rodrigues Catarina Moreirinha Gopika Rajan Ana I. S. Neves Sidónio C. Freitas Sara Sequeira Saverio Russo Monica F. Craciun Adelaide Almeida Helena Alves |
| author_sort | Daniela P. Rodrigues |
| collection | DOAJ |
| description | Abstract Graphene is emerging in numerous wearable and biomedical applications. Understanding the impact of graphene‐based nanocomposites over bacterial activity is critical for design appropriate technical solutions. In this work, antibacterial activity of monolayer and few‐layer graphene is tested against Gram‐negative and Gram‐positive model bacteria. Such graphene‐based nanomaterials present different effects on bacteria viability, depending on concentration and shape. The presence of dopant agents can either increase or revert graphene antibacterial effect. Among other bactericidal mechanisms, we also demonstrate that graphene surface polarity is connected to antibacterial properties and can be easily modified by surface charge transfer doping. This electrophilicity tuning offers a novel mechanism for the molecular basis of graphene's antibacterial activity. |
| first_indexed | 2024-03-12T16:59:24Z |
| format | Article |
| id | doaj.art-0fbe115ea5c84490b0c056e4dc365e47 |
| institution | Directory Open Access Journal |
| issn | 2688-4011 |
| language | English |
| last_indexed | 2024-03-12T16:59:24Z |
| publishDate | 2023-08-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Nano Select |
| spelling | doaj.art-0fbe115ea5c84490b0c056e4dc365e472023-08-07T18:00:32ZengWiley-VCHNano Select2688-40112023-08-014850251210.1002/nano.202100226Conversion of antibacterial activity of graphene‐coated textiles through surface polarityDaniela P. Rodrigues0Catarina Moreirinha1Gopika Rajan2Ana I. S. Neves3Sidónio C. Freitas4Sara Sequeira5Saverio Russo6Monica F. Craciun7Adelaide Almeida8Helena Alves9CICECO – Aveiro Institute of Materials Physics Department University of Aveiro Aveiro 3810‐193 PortugalCESAM – Centre for Environmental and Marine Studies University of Aveiro Aveiro 3810‐193 PortugalCentre for Graphene Science College of Engineering Mathematics and Physical Sciences University of Exeter Exeter EX4 4QF UKCentre for Graphene Science College of Engineering Mathematics and Physical Sciences University of Exeter Exeter EX4 4QF UKCICECO – Aveiro Institute of Materials Physics Department University of Aveiro Aveiro 3810‐193 PortugalCICECO – Aveiro Institute of Materials Physics Department University of Aveiro Aveiro 3810‐193 PortugalCentre for Graphene Science College of Engineering Mathematics and Physical Sciences University of Exeter Exeter EX4 4QF UKCentre for Graphene Science College of Engineering Mathematics and Physical Sciences University of Exeter Exeter EX4 4QF UKCESAM – Centre for Environmental and Marine Studies University of Aveiro Aveiro 3810‐193 PortugalCICECO – Aveiro Institute of Materials Physics Department University of Aveiro Aveiro 3810‐193 PortugalAbstract Graphene is emerging in numerous wearable and biomedical applications. Understanding the impact of graphene‐based nanocomposites over bacterial activity is critical for design appropriate technical solutions. In this work, antibacterial activity of monolayer and few‐layer graphene is tested against Gram‐negative and Gram‐positive model bacteria. Such graphene‐based nanomaterials present different effects on bacteria viability, depending on concentration and shape. The presence of dopant agents can either increase or revert graphene antibacterial effect. Among other bactericidal mechanisms, we also demonstrate that graphene surface polarity is connected to antibacterial properties and can be easily modified by surface charge transfer doping. This electrophilicity tuning offers a novel mechanism for the molecular basis of graphene's antibacterial activity.https://doi.org/10.1002/nano.202100226antimicrobial surfacesbacterial activitygraphenesmart textilessurface charge transfer doping |
| spellingShingle | Daniela P. Rodrigues Catarina Moreirinha Gopika Rajan Ana I. S. Neves Sidónio C. Freitas Sara Sequeira Saverio Russo Monica F. Craciun Adelaide Almeida Helena Alves Conversion of antibacterial activity of graphene‐coated textiles through surface polarity Nano Select antimicrobial surfaces bacterial activity graphene smart textiles surface charge transfer doping |
| title | Conversion of antibacterial activity of graphene‐coated textiles through surface polarity |
| title_full | Conversion of antibacterial activity of graphene‐coated textiles through surface polarity |
| title_fullStr | Conversion of antibacterial activity of graphene‐coated textiles through surface polarity |
| title_full_unstemmed | Conversion of antibacterial activity of graphene‐coated textiles through surface polarity |
| title_short | Conversion of antibacterial activity of graphene‐coated textiles through surface polarity |
| title_sort | conversion of antibacterial activity of graphene coated textiles through surface polarity |
| topic | antimicrobial surfaces bacterial activity graphene smart textiles surface charge transfer doping |
| url | https://doi.org/10.1002/nano.202100226 |
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