The Adsorption properties of Bacillus atrophaeus spore on functionalized Carbon Nanotubes

P. Cortes, Shuguang Deng, L. Camacho, G. B. Smith

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number691585
JournalJournal of Sensors
Volume2010
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

spores
Bacillus
Bacilli
Nanotubes
Carbon nanotubes
nanotubes
carbon nanotubes
Adsorption
adsorption
appendages
carboxyl group
Nanostructured materials
purification
Functional groups
Purification
Raman spectroscopy
Infrared spectroscopy
infrared spectroscopy
inclusions
Transmission electron microscopy

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering
  • Control and Systems Engineering

Cite this

The Adsorption properties of Bacillus atrophaeus spore on functionalized Carbon Nanotubes. / Cortes, P.; Deng, Shuguang; Camacho, L.; Smith, G. B.

In: Journal of Sensors, Vol. 2010, 691585, 2010.

Research output: Contribution to journalArticle

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