Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants
We investigated the antibacterial activity of single-walled carbon nanotubes (SWCNTs) dispersed in surfactant solutions of sodium cholate, sodium dodecylbenzene sulfonate, and sodium dodecyl sulfate. Among the three surfactants, sodium cholate demonstrated the weakest antibacterial activity against...
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doaj-005dd88f5b1c4caea0f798d67b2586a92020-11-24T23:01:32ZengHindawi LimitedJournal of Nanotechnology1687-95031687-95112012-01-01201210.1155/2012/928924928924Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different SurfactantsLifeng Dong0Alex Henderson1Christopher Field2Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, MO 65897, USADepartment of Biology, Truman State University, Kirksville, MO 63501, USADepartment of Biomedical Sciences, Missouri State University, Springfield, MO 65897, USAWe investigated the antibacterial activity of single-walled carbon nanotubes (SWCNTs) dispersed in surfactant solutions of sodium cholate, sodium dodecylbenzene sulfonate, and sodium dodecyl sulfate. Among the three surfactants, sodium cholate demonstrated the weakest antibacterial activity against Salmonella enterica, Escherichia coli, and Enterococcus faecium and thereby was used to disperse bundled SWCNTs in order to study nanotube antibiotic activity. SWCNTs exhibited antibacterial characteristics for both S. enterica and E. coli. With the increase of nanotube concentrations from 0.3 mg/mL to 1.5 mg/mL, the growth curves had plateaus at lower absorbance values whereas the absorbance value was not obviously affected by the incubation ranging from 5 min to 2 h. Our findings indicate that carbon nanotubes could become an effective alternative to antibiotics in dealing with drug-resistant and multidrug-resistant bacterial strains because of the physical mode of bactericidal action that SWCNTs display.http://dx.doi.org/10.1155/2012/928924 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lifeng Dong Alex Henderson Christopher Field |
spellingShingle |
Lifeng Dong Alex Henderson Christopher Field Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants Journal of Nanotechnology |
author_facet |
Lifeng Dong Alex Henderson Christopher Field |
author_sort |
Lifeng Dong |
title |
Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants |
title_short |
Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants |
title_full |
Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants |
title_fullStr |
Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants |
title_full_unstemmed |
Antimicrobial Activity of Single-Walled Carbon Nanotubes Suspended in Different Surfactants |
title_sort |
antimicrobial activity of single-walled carbon nanotubes suspended in different surfactants |
publisher |
Hindawi Limited |
series |
Journal of Nanotechnology |
issn |
1687-9503 1687-9511 |
publishDate |
2012-01-01 |
description |
We investigated the antibacterial activity of single-walled carbon nanotubes (SWCNTs) dispersed in surfactant solutions of sodium cholate, sodium dodecylbenzene sulfonate, and sodium dodecyl sulfate. Among the three surfactants, sodium cholate demonstrated the weakest antibacterial activity against Salmonella enterica, Escherichia coli, and Enterococcus faecium and thereby was used to disperse bundled SWCNTs in order to study nanotube antibiotic activity. SWCNTs exhibited antibacterial characteristics for both S. enterica and E. coli. With the increase of nanotube concentrations from 0.3 mg/mL to 1.5 mg/mL, the growth curves had plateaus at lower absorbance values whereas the absorbance value was not obviously affected by the incubation ranging from 5 min to 2 h. Our findings indicate that carbon nanotubes could become an effective alternative to antibiotics in dealing with drug-resistant and multidrug-resistant bacterial strains because of the physical mode of bactericidal action that SWCNTs display. |
url |
http://dx.doi.org/10.1155/2012/928924 |
work_keys_str_mv |
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