Abstract
To test the impact of commercial nanomaterials on the environment and biological species, the potential eco-toxicity of nano sized silver powder was investigated with bacteria, Gram-negative Escherichia coli and Gram-positive Bacillus subtilis and yeast, Saccharomyces cerevisiae. When commercial silver nanopowder was dispersed in water, it was shown to contain both silver nanoparticles and silver ions. S. cerevisiae showed a higher survival rate than the other two species. To compare the antimicrobial activity as a quantitative parameter, the susceptibility constant was determined. The susceptibility constant of the silver ions were larger than those of the silver nanopowder. On average, the degree of susceptibility to silver decreased in the following order, E. coli > B. subtilis > S. cerevisiae.
| Original language | English |
|---|---|
| Pages (from-to) | 490-495 |
| Number of pages | 6 |
| Journal | Biotechnology and Bioprocess Engineering |
| Volume | 14 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2009 Oct 9 |
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Keywords
- Antibacterial activity
- Cytotoxicity
- Silver ions
- Silver nanoparticles
ASJC Scopus subject areas
- Biotechnology
- Applied Microbiology and Biotechnology
- Biomedical Engineering
- Bioengineering
Cite this
Eco-toxicity of commercial silver nanopowders to bacterial and yeast strains. / Lee, Sira; Lee, Juhee; Kim, Kiwoo; Sim, Sang Jun; Gu, Man Bock; Yi, Jongheop; Lee, Jinwon.
In: Biotechnology and Bioprocess Engineering, Vol. 14, No. 4, 09.10.2009, p. 490-495.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Eco-toxicity of commercial silver nanopowders to bacterial and yeast strains
AU - Lee, Sira
AU - Lee, Juhee
AU - Kim, Kiwoo
AU - Sim, Sang Jun
AU - Gu, Man Bock
AU - Yi, Jongheop
AU - Lee, Jinwon
PY - 2009/10/9
Y1 - 2009/10/9
N2 - To test the impact of commercial nanomaterials on the environment and biological species, the potential eco-toxicity of nano sized silver powder was investigated with bacteria, Gram-negative Escherichia coli and Gram-positive Bacillus subtilis and yeast, Saccharomyces cerevisiae. When commercial silver nanopowder was dispersed in water, it was shown to contain both silver nanoparticles and silver ions. S. cerevisiae showed a higher survival rate than the other two species. To compare the antimicrobial activity as a quantitative parameter, the susceptibility constant was determined. The susceptibility constant of the silver ions were larger than those of the silver nanopowder. On average, the degree of susceptibility to silver decreased in the following order, E. coli > B. subtilis > S. cerevisiae.
AB - To test the impact of commercial nanomaterials on the environment and biological species, the potential eco-toxicity of nano sized silver powder was investigated with bacteria, Gram-negative Escherichia coli and Gram-positive Bacillus subtilis and yeast, Saccharomyces cerevisiae. When commercial silver nanopowder was dispersed in water, it was shown to contain both silver nanoparticles and silver ions. S. cerevisiae showed a higher survival rate than the other two species. To compare the antimicrobial activity as a quantitative parameter, the susceptibility constant was determined. The susceptibility constant of the silver ions were larger than those of the silver nanopowder. On average, the degree of susceptibility to silver decreased in the following order, E. coli > B. subtilis > S. cerevisiae.
KW - Antibacterial activity
KW - Cytotoxicity
KW - Silver ions
KW - Silver nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=70349643550&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349643550&partnerID=8YFLogxK
U2 - 10.1007/s12257-008-0254-6
DO - 10.1007/s12257-008-0254-6
M3 - Article
AN - SCOPUS:70349643550
VL - 14
SP - 490
EP - 495
JO - Biotechnology and Bioprocess Engineering
JF - Biotechnology and Bioprocess Engineering
SN - 1226-8372
IS - 4
ER -