Interaction forces between waterborne bacteria and activated carbon particles

Busscher, Henk J.; Dijkstra, René J. B.; Langworthy, Don E.; Collias, Dimitris I.; Bjorkquist, D.; Mitchell, Mark B.; Mei, Henny C. van der

doi:10.1016/j.jcis.2008.03.018

Cited by 22 publications

(14 citation statements)

References 34 publications

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“…Nevertheless, aggregation and disaggregation processes driven by factors such as variations in temperature, organic matter load and productivity seem more likely responsible for the change of particle size. BC‐like chemicals such as activated charcoal are well‐known absorbents of organic matter (Busscher et al ., 2008), and in our study, viruses and bacteria became associated with BC particles. In the bay of Villefranche, seasonal variations of environmental parameters can play an important role in the dynamics of DYP (Mostajir et al ., 1995) and the aggregation of TEP (Beauvais et al ., 2003).…”

Section: Discussionmentioning

confidence: 99%

“…For example, if specific viral types become associated in different rates, this could change viral infection and lysis of specific phylotypes, and thus, affect community structure. Because BC readily absorbs organic matter (Busscher et al ., 2008), the organic matter field could be changed by BC, for example by creating hot spots of organic matter transformation. Such a mechanism could also influence the free‐living community.…”

Section: Discussionmentioning

confidence: 99%

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Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Cattaneo

Rouvière

Rassoulzadegan

et al. 2010

FEMS Microbiology Ecology

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Black carbon (BC), the product of incomplete combustion of fossil fuels and biomass, constitutes a significant fraction of the marine organic carbon pool. However, little is known about the possible interactions of BC and marine microorganisms. Here, we report the results of experiments using a standard reference BC material in high concentrations to investigate basic principles of the dynamics of natural bacterial and viral communities with BC particles. We assessed the attachment of viral and bacterial communities using scanning electron, epifluorescence and confocal laser scanning microscopy and shifts in bacterial community composition using 16S rRNA gene denaturing gradient gel electrophoresis (DGGE). In 24-h time-course experiments, BC particles showed a strong potential for absorbing viruses and bacteria. Total viral abundance was reduced, whereas total bacterial abundance was stimulated in the BC treatments. Viral and bacterial abundance on BC particles increased with particle size, whereas the abundances of BC-associated viruses and bacteria per square micrometer surface area decreased significantly with BC particle size. DGGE results suggested that BC has the potential to change bacterial community structure and favour phylotypes related to Glaciecola sp. Our study indicates that BC could influence processes mediated by bacteria and viruses in marine ecosystems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Cattaneo

Rouvière

Rassoulzadegan

et al. 2010

FEMS Microbiology Ecology

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“…The results of the precipitation assay may be influenced by the aggregation activity of each carbon material, which in turn depends on the differences in their diameters. Bacteria are known attach to AC particles by means of strong van der Waals forces between the bacterial and carbon surfaces [11]. Therefore, all type of carbon materials will have high affinity to bacteria because of the generation of van der Waals forces.…”

Section: Kim Et Al Reported That Cnts Clusters Show High Affinity Tomentioning

confidence: 99%

Capture of bacteria by flexible carbon nanotubes

2009

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Capture of bacteria with flexible carbon nanotubes (CNTs) was done in vitro. Bundles of single-walled carbon nanotubes (SWCNTs) or multi-walled carbon nanotubes (MWCNTs) was mixed with Streptococcus mutans. Precipitation assays and colony-forming unit formation assays showed free S. mutans in the solution was significantly decreased by the addition of the CNTs. Observation of the precipitate by scanning electron microscopy showed bacterial adhesion to CNTs. It has been shown that CNTs of different diameters have significantly different effects on the precipitation efficiency, and the manners in which they capture the cells are different. We found that MWCNTs (diameter of approximately 30 nm) had the highest precipitation efficiency, which was attributable to both their adequate dispersibility and aggregation activity. From observations by scanning electron microscopy, bundles of SWCNTs and thin MWCNTs (diameter of approximately 30 nm), which were moderately flexible, were easily wound around the curved surface of S. mutans. Bare CNTs having high adhesive ability could be useful as biomaterials, e.g., as tools for the elimination of oral pathogens at the nano-level

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“…HERATH et al (1999) ont ainsi montré que l'élimination des coliphages par microfiltration était liée à leurs charges électrostatiques et leurs points isoélectriques. Ce processus dépend donc des propriétés physico-chimiques des microorganismes et des adsorbants (BUSSCHER et al, 2008;LANGLET et al, 2009;RIzzO et al, 2008). Par ailleurs, les procédés de traitement par exclusion stérique seuls (filtration) peuvent s'avérer peu efficaces dans la rétention des virus en raison de leur faible taille, comprise entre 100 et 20 nm environ (FIKSDAL et LEIKNES, 2006).…”

Section: La Diversité Des Espèces Microbiennes Dans L'eau Potableunclassified

Le réseau de distribution d’eau potable : un écosystème complexe lié à des enjeux de santé publique

Poitelon

Joyeux

Welté

et al. 2012

rseau

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L’émergence de pathogènes dans l’eau destinée à la consommation humaine représente une préoccupation majeure en matière de santé publique pour les industriels et les pouvoirs publics concernés. Parmi ces pathogènes, certains sont d’origine fécale (Cryptosporidium, Campylobacter ou bien les rotavirus), alors que d’autres vivent dans l’environnent naturel (Legionella, Pseudomonas, Aeromonas ou bien les mycobactéries). Dans l’optique de mettre en place une analyse des risques liés à la présence de ces pathogènes, il est important d’accroître nos connaissances sur l’écologie de ces microorganismes et de développer des outils d’analyse afin de réaliser une meilleure surveillance sanitaire. Par conséquent, l’écologie microbienne du réseau de distribution d’eau potable doit être étudiée en détail, particulièrement vis-à-vis des propriétés physiologiques et la diversité des espèces microbiennes présentes, afin de mieux comprendre les interactions entre les espèces communément rencontrées et celles pathogènes.The emergence of pathogens in water intended for human consumption is a major concern in terms of the public health industry and the public authorities concerned. Among these pathogens, some are of faecal origin (Cryptosporidium, Campylobacter, or rotavirus), while others live in the natural environment (Legionella, Pseudomonas, Aeromonas or mycobacteria). In order to establish a risk analysis related to the presence of these pathogens, it is important to increase our knowledge on the ecology of these microorganisms and to develop analytical tools to achieve better health monitoring. Therefore, the microbial ecology of drinking water distribution networks must be studied in detail, especially with respect to the properties and physiological diversity of the microbial species present, in order to better understand the interactions between species commonly encountered and those that are pathogens

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Interaction forces between waterborne bacteria and activated carbon particles

Cited by 22 publications

References 34 publications

Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Capture of bacteria by flexible carbon nanotubes

Le réseau de distribution d’eau potable : un écosystème complexe lié à des enjeux de santé publique

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