The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes
An equilibrium study of Bacillus atrophaeus (B.a) spores on functionalized Single-Wall Carbon Nanotubes (SWCNTs) has been performed in order to characterize the adsorption properties of the spores/nanotubes complex. The carbon nanotubes here investigated were subjected to a two-step purification and...
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doaj-bb622bcd3cdc4f40bdbd888ecb1305552020-11-24T20:52:50ZengHindawi LimitedJournal of Sensors1687-725X1687-72682010-01-01201010.1155/2010/691585691585The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon NanotubesP. Cortes0S. Deng1L. Camacho2G. B. Smith3Department of Civil/Environmental & Chemical Engineering, One University Plaza, Youngstown State University, Youngstown, OH 44555, USADepartment of Chemical Engineering, South Horseshoe, Jett Hall, New Mexico State University, Las Cruces, NM 88003, USADepartment of Chemical Engineering, South Horseshoe, Jett Hall, New Mexico State University, Las Cruces, NM 88003, USADepartment of Biology, South Horseshoe, Foster Hall, New Mexico State University, Las Cruces, NM 88003, USAAn equilibrium study of Bacillus atrophaeus (B.a) spores on functionalized Single-Wall Carbon Nanotubes (SWCNTs) has been performed in order to characterize the adsorption properties of the spores/nanotubes complex. The carbon nanotubes here investigated were subjected to a two-step purification and functionalization treatment in order to introduce chemical groups on their basal planes. The inclusion of carboxyl functional groups on the nanotubes was corroborated by Raman and infrared spectroscopy. These carboxyl groups appear to enhance the nanotube-B.a. interaction by reacting with the proteinaceous pili appendages present on the spore surface. The adsorption data demonstrate that bacillus spores diffuse faster on functionalized carbon nanotubes than on as-received and purified nanomaterials. Transmission Electron Microscopy also shows that the chemically treated nanotubes resulted in a swollen nano-network which seems to further enhance the bacillus adsorption due to a more extensive spore-nanotube contact area.http://dx.doi.org/10.1155/2010/691585 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P. Cortes S. Deng L. Camacho G. B. Smith |
spellingShingle |
P. Cortes S. Deng L. Camacho G. B. Smith The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes Journal of Sensors |
author_facet |
P. Cortes S. Deng L. Camacho G. B. Smith |
author_sort |
P. Cortes |
title |
The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes |
title_short |
The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes |
title_full |
The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes |
title_fullStr |
The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes |
title_full_unstemmed |
The Adsorption Properties of Bacillus atrophaeus Spore on Functionalized Carbon Nanotubes |
title_sort |
adsorption properties of bacillus atrophaeus spore on functionalized carbon nanotubes |
publisher |
Hindawi Limited |
series |
Journal of Sensors |
issn |
1687-725X 1687-7268 |
publishDate |
2010-01-01 |
description |
An equilibrium study of Bacillus atrophaeus (B.a) spores on functionalized Single-Wall Carbon Nanotubes (SWCNTs) has been performed in order to characterize the adsorption properties of the spores/nanotubes complex. The carbon nanotubes here investigated were subjected to a two-step purification and functionalization treatment in order to introduce chemical groups on their basal planes. The inclusion of carboxyl functional groups on the nanotubes was corroborated by Raman and infrared spectroscopy. These carboxyl groups appear to enhance the nanotube-B.a. interaction by reacting with the proteinaceous pili appendages present on the spore surface. The adsorption data demonstrate that bacillus spores diffuse faster on functionalized carbon nanotubes than on as-received and purified nanomaterials. Transmission Electron Microscopy also shows that the chemically treated nanotubes resulted in a swollen nano-network which seems to further enhance the bacillus adsorption due to a more extensive spore-nanotube contact area. |
url |
http://dx.doi.org/10.1155/2010/691585 |
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