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The effect of graphene–poly(methyl methacrylate) fibres on microbial growth
A novel class of ultra-thin fibres, which affect microbial growth, were explored. The microbial properties of poly(methyl methacrylate) fibres containing 2, 4 and 8 wt% of graphene nanoplatelets (GNPs) were studied. GNPs were dispersed in a polymeric solution and processed using pressurized gyration...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5915660/ https://www.ncbi.nlm.nih.gov/pubmed/29696090 http://dx.doi.org/10.1098/rsfs.2017.0058 |
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author | Matharu, Rupy Kaur Porwal, Harshit Ciric, Lena Edirisinghe, Mohan |
author_facet | Matharu, Rupy Kaur Porwal, Harshit Ciric, Lena Edirisinghe, Mohan |
author_sort | Matharu, Rupy Kaur |
collection | PubMed |
description | A novel class of ultra-thin fibres, which affect microbial growth, were explored. The microbial properties of poly(methyl methacrylate) fibres containing 2, 4 and 8 wt% of graphene nanoplatelets (GNPs) were studied. GNPs were dispersed in a polymeric solution and processed using pressurized gyration. Electron microscopy was used to characterize GNP and fibre morphology. Scanning electron microscopy revealed the formation of beaded porous fibres. GNP concentration was found to dictate fibre morphology. As the GNP concentration increased, the average fibre diameter increased from 0.75 to 2.71 µm, while fibre porosity decreased. Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa were used to investigate the properties of 2, 4 and 8 wt% GNP-loaded fibres. GNP-loaded fibres (0 wt%) were used as the negative control. The fibres were incubated for 24 h with the bacteria; bacterial colony-forming units were enumerated by adopting the colony-counting method. The presence of 2 and 4 wt% GNP-loaded fibres promoted microbial growth, while 8 wt% GNP-loaded fibres showed antimicrobial activity. These results indicate that the minimum inhibitory concentration of GNPs required within a fibre is 8 wt%. |
format | Online Article Text |
id | pubmed-5915660 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-59156602018-04-25 The effect of graphene–poly(methyl methacrylate) fibres on microbial growth Matharu, Rupy Kaur Porwal, Harshit Ciric, Lena Edirisinghe, Mohan Interface Focus Articles A novel class of ultra-thin fibres, which affect microbial growth, were explored. The microbial properties of poly(methyl methacrylate) fibres containing 2, 4 and 8 wt% of graphene nanoplatelets (GNPs) were studied. GNPs were dispersed in a polymeric solution and processed using pressurized gyration. Electron microscopy was used to characterize GNP and fibre morphology. Scanning electron microscopy revealed the formation of beaded porous fibres. GNP concentration was found to dictate fibre morphology. As the GNP concentration increased, the average fibre diameter increased from 0.75 to 2.71 µm, while fibre porosity decreased. Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa were used to investigate the properties of 2, 4 and 8 wt% GNP-loaded fibres. GNP-loaded fibres (0 wt%) were used as the negative control. The fibres were incubated for 24 h with the bacteria; bacterial colony-forming units were enumerated by adopting the colony-counting method. The presence of 2 and 4 wt% GNP-loaded fibres promoted microbial growth, while 8 wt% GNP-loaded fibres showed antimicrobial activity. These results indicate that the minimum inhibitory concentration of GNPs required within a fibre is 8 wt%. The Royal Society 2018-06-06 2018-04-20 /pmc/articles/PMC5915660/ /pubmed/29696090 http://dx.doi.org/10.1098/rsfs.2017.0058 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Articles Matharu, Rupy Kaur Porwal, Harshit Ciric, Lena Edirisinghe, Mohan The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title | The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title_full | The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title_fullStr | The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title_full_unstemmed | The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title_short | The effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
title_sort | effect of graphene–poly(methyl methacrylate) fibres on microbial growth |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5915660/ https://www.ncbi.nlm.nih.gov/pubmed/29696090 http://dx.doi.org/10.1098/rsfs.2017.0058 |
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