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Inactivation of viruses in water by biogenic silver: innovative and environmentally friendly disinfection technique

Bart De Gusseme UGent, Liesje Sintubin UGent, Tom Hennebel UGent, Nico Boon UGent, Willy Verstraete UGent, Leen Baert UGent and Mieke Uyttendaele UGent (2010) 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). In 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
abstract
The presence of enteric viruses in drinking water is a potential health risk. Growing interest has arisen in nanometals for water disinfection, in particular the use of silver based nanotechnology. In this study, Lactobacillus fermentum served as reducing agent and bacterial carrier matrix for zerovalent silver nanoparticles, referred to as biogenic Ag0. The antiviral action of biogenic Ag0 was examined in water, spiked with an Enterobacter aerogenes infecting bacteriophage (UZ1). Addition of 5.4 mg L-1 biogenic Ag0 caused a 4.0 log decrease of the phage after 1 h, whereas the use of chemically produced silver nanoparticles (nAg0) showed no inactivation within the same time frame. A control experiment with 5.4 mg L-1 ionic Ag+ resulted in a similar inactivation after 5 h only. The antiviral properties of biogenic Ag0 were also demonstrated on the murine norovirus 1 (MNV-1), a model organism for human noroviruses. Biogenic Ag0 was applied to an electropositive cartridge filter to evaluate its ability for continuous disinfection. Addition of 31.25 mg m-2 biogenic Ag0 on the filter (135 mg biogenic Ag0 kg-1 filter media) caused a 3.8 log decline of the virus. On the contrary, only a 1.5 log decrease could be obtained with the original filter. This type of filters coated with biogenic Ag0 might become a sustainable alternative for water disinfection or can enhance disinfection efficacy in conjunction with existing techniques.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
reduction (chemical), biomedical materials, antibacterial activity, water treatment, contamination, microorganisms, silver, nanoparticles, nanobiotechnology, health hazards
in
2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010)
series title
4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
pages
5 pages
publisher
IEEE
place of publication
New York, NY, USA
conference name
4th International conference on Bioinformatics and Biomedical Engineering (iCBBE 2010)
conference location
Chengdu, PR China
conference start
2010-06-18
conference end
2010-06-20
Web of Science type
Conference Paper
Web of Science id
11494781
ISSN
2151-7614
ISBN
9781424447121
DOI
10.1109/ICBBE.2010.5515631
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1056733
handle
http://hdl.handle.net/1854/LU-1056733
date created
2010-10-09 13:00:30
date last changed
2010-10-18 10:26:20
@inproceedings{1056733,
  abstract     = {The presence of enteric viruses in drinking water is a potential health risk. Growing interest has arisen in nanometals for water disinfection, in particular the use of silver based nanotechnology. In this study, Lactobacillus fermentum served as reducing agent and bacterial carrier matrix for zerovalent silver nanoparticles, referred to as biogenic Ag0. The antiviral action of biogenic Ag0 was examined in water, spiked with an Enterobacter aerogenes infecting bacteriophage (UZ1). Addition of 5.4 mg L-1 biogenic Ag0 caused a 4.0 log decrease of the phage after 1 h, whereas the use of chemically produced silver nanoparticles (nAg0) showed no inactivation within the same time frame. A control experiment with 5.4 mg L-1 ionic Ag+ resulted in a similar inactivation after 5 h only. The antiviral properties of biogenic Ag0 were also demonstrated on the murine norovirus 1 (MNV-1), a model organism for human noroviruses. Biogenic Ag0 was applied to an electropositive cartridge filter to evaluate its ability for continuous disinfection. Addition of 31.25 mg m-2 biogenic Ag0 on the filter (135 mg biogenic Ag0 kg-1 filter media) caused a 3.8 log decline of the virus. On the contrary, only a 1.5 log decrease could be obtained with the original filter. This type of filters coated with biogenic Ag0 might become a sustainable alternative for water disinfection or can enhance disinfection efficacy in conjunction with existing techniques.},
  author       = {De Gusseme, Bart and Sintubin, Liesje and Hennebel, Tom and Boon, Nico and Verstraete, Willy and Baert, Leen and Uyttendaele, Mieke},
  booktitle    = {2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010)},
  isbn         = {9781424447121},
  issn         = {2151-7614},
  keyword      = {reduction (chemical),biomedical materials,antibacterial activity,water treatment,contamination,microorganisms,silver,nanoparticles,nanobiotechnology,health hazards},
  language     = {eng},
  location     = {Chengdu, PR China},
  pages        = {5},
  publisher    = {IEEE},
  title        = {Inactivation of viruses in water by biogenic silver: innovative and environmentally friendly disinfection technique},
  url          = {http://dx.doi.org/10.1109/ICBBE.2010.5515631},
  year         = {2010},
}

Chicago
De Gusseme, Bart, Liesje Sintubin, Tom Hennebel, Nico Boon, Willy Verstraete, Leen Baert, and Mieke Uyttendaele. 2010. “Inactivation of Viruses in Water by Biogenic Silver: Innovative and Environmentally Friendly Disinfection Technique.” In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). New York, NY, USA: IEEE.
APA
De Gusseme, B., Sintubin, L., Hennebel, T., Boon, N., Verstraete, W., Baert, L., & Uyttendaele, M. (2010). Inactivation of viruses in water by biogenic silver: innovative and environmentally friendly disinfection technique. 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). Presented at the 4th International conference on Bioinformatics and Biomedical Engineering (iCBBE 2010), New York, NY, USA: IEEE.
Vancouver
1.
De Gusseme B, Sintubin L, Hennebel T, Boon N, Verstraete W, Baert L, et al. Inactivation of viruses in water by biogenic silver: innovative and environmentally friendly disinfection technique. 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). New York, NY, USA: IEEE; 2010.
MLA
De Gusseme, Bart, Liesje Sintubin, Tom Hennebel, et al. “Inactivation of Viruses in Water by Biogenic Silver: Innovative and Environmentally Friendly Disinfection Technique.” 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). New York, NY, USA: IEEE, 2010. Print.