Antibacterial activity of graphene oxide.

Healthy and environmental issues are the most concerned issues around the globe. Graphene-oxide (GO) material has shown potential in antibacterial activity. However, the impact of GO must be exhaustively evaluated before its further application. To better understand its antibacterial mechanism, anti...

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Main Author: Hu, Ming.
Other Authors: Chen Yuan
Format: Theses and Dissertations
Language:English
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/10356/50520
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-505202023-03-03T16:02:17Z Antibacterial activity of graphene oxide. Hu, Ming. Chen Yuan School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering Healthy and environmental issues are the most concerned issues around the globe. Graphene-oxide (GO) material has shown potential in antibacterial activity. However, the impact of GO must be exhaustively evaluated before its further application. To better understand its antibacterial mechanism, antibacterial activity of GO toward a bacterial model-E.coli was conducted. The antibacterial activity of GO was measured by counting methods and GO eventually shows a strong antibacterial activity against E.coli. Scanning electron microscope (SEM) and Atomic force microscopy (AFM) combined display the direct contacts with grapheme nanosheets disrupt bacterial membrane. The death rate was measured and in addition to that, we also test other factors, such as pH, salt concentration in medium and illumination, to check whether they have an influence on antibacterial effect. The result shows that pH is inversely proportional to the antibacterial of GO as well as salt concentration in medium. The illumination, however, has minimal effect on the antibacterial activity. Master of Science 2012-06-11T08:01:18Z 2012-06-11T08:01:18Z 2012 2012 Thesis http://hdl.handle.net/10356/50520 en 46 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Chemical engineering
spellingShingle DRNTU::Engineering::Chemical engineering
Hu, Ming.
Antibacterial activity of graphene oxide.
description Healthy and environmental issues are the most concerned issues around the globe. Graphene-oxide (GO) material has shown potential in antibacterial activity. However, the impact of GO must be exhaustively evaluated before its further application. To better understand its antibacterial mechanism, antibacterial activity of GO toward a bacterial model-E.coli was conducted. The antibacterial activity of GO was measured by counting methods and GO eventually shows a strong antibacterial activity against E.coli. Scanning electron microscope (SEM) and Atomic force microscopy (AFM) combined display the direct contacts with grapheme nanosheets disrupt bacterial membrane. The death rate was measured and in addition to that, we also test other factors, such as pH, salt concentration in medium and illumination, to check whether they have an influence on antibacterial effect. The result shows that pH is inversely proportional to the antibacterial of GO as well as salt concentration in medium. The illumination, however, has minimal effect on the antibacterial activity.
author2 Chen Yuan
author_facet Chen Yuan
Hu, Ming.
format Theses and Dissertations
author Hu, Ming.
author_sort Hu, Ming.
title Antibacterial activity of graphene oxide.
title_short Antibacterial activity of graphene oxide.
title_full Antibacterial activity of graphene oxide.
title_fullStr Antibacterial activity of graphene oxide.
title_full_unstemmed Antibacterial activity of graphene oxide.
title_sort antibacterial activity of graphene oxide.
publishDate 2012
url http://hdl.handle.net/10356/50520
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