The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Toxicity of Silver Nanoparticles to Chlamydomonas reinhardtii
Abstract
Silver nanoparticles (AgNP) are likely to enter the aquatic environment because of their multiple uses. We have examined the short-term toxicity of AgNP and ionic silver (Ag+) to photosynthesis in Chlamydomonas reinhardtii using fluorometry. AgNP ranged in size from 10 to 200 nm with most particles around 25 nm. As determined by DGT (diffusive gradients in thin films), by ion-selective electrode, and by centrifugal ulrafiltration, about 1% of the AgNP was present as Ag+ ions. Based on total Ag concentration, toxicity was 18 times higher for AgNO3 than for AgNP (in terms of EC50). However, when compared as a function of the Ag+ concentration,toxicity of AgNP appeared to be much higher than that of AgNO3. The ionic Ag+ measured in the AgNP suspensions could not fully explain the observed toxicity. Cysteine, a strong Ag+ ligand, abolished the inhibitory effects on photosynthesis of both AgNP and Ag+. Together, the results indicate that the interaction of these particles with algae influences the toxicity of AgNP, which is mediated by Ag+. Particles contributed to the toxicity as a source of Ag+ which is formed in presence of algae.
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Cites
Brunner, T. J., Wick, P., Manser, P., Spohn, P., Grass, R. N., Limbach, L. K., Bruinink, A., & Stark, W. J. (2006) · Environmental Science & Technology · doi:10.1021/es052069i · Cited by 1,385
Cited by
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Khan, I., Saeed, K., & Khan, I. (2019) · Arabian Journal of Chemistry · doi:10.1016/j.arabjc.2017.05.011 · Cited by 6,244
Negligible Particle-Specific Antibacterial Activity of Silver Nanoparticles
Xiu, Z.-M., Zhang, Q.-B., Puppala, H. L., Colvin, V. L., & Alvarez, P. J. J. (2012) · Nano Letters · doi:10.1021/nl301934w · Cited by 2,108
Silver nanoparticles: A new view on mechanistic aspects on antimicrobial activity
Durán, N., Durán, M., de Jesus, M. B., Seabra, A. B., Fávaro, W. J., & Nakazato, G. (2016) · Nanomedicine: Nanotechnology, Biology and Medicine · doi:10.1016/j.nano.2015.11.016 · Cited by 1,542
Kittler, S., Greulich, C., Diendorf, J., Köller, M., & Epple, M. (2010) · Chemistry of Materials · doi:10.1021/cm100023p · Cited by 1,126
Qu, X., Brame, J., Li, Q., & Alvarez, P. J. J. (2013) · Accounts of Chemical Research · doi:10.1021/ar300029v · Cited by 799
Metadata
- Authors
- Navarro, E., Piccapietra, F., Wagner, B., Marconi, F., Kaegi, R., Odzak, N., Sigg, L., & Behra, R.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-10-01
- Volume
- 42
- Issue
- 23
- Pages
- 8959-8964
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1980182356
- Cited by
- 1,457
- References
- 1
- FWCI
- 33.68
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
