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Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta.
Sci Total Environ. 2013 Feb 15; 445-446:371-6.ST

Abstract

Dose response curve and population growth rate alterations of marine Chlorophyte Dunaliella tertiolecta derived from the exposure to ZnO nanoparticles were evaluated. Bulk ZnO and ionic zinc were also investigated for comparison. At the same time, the aggregation state and particle size distribution were monitored. The evaluated 50% effect concentration (EC50 1.94 [0.78-2.31] mg Zn L(-1)) indicates that nano ZnO is more toxic than its bulk counterpart (EC50 3.57 [2.77-4.80] mg Zn L(-1)). Cross-referencing the toxicity parameters calculated for ZnCl(2) (EC50 0.65 [0.36-0.70] mg Zn L(-1)) and the dissolution properties of the ZnO, it can be gathered that the higher toxicity of nano ZnO is most likely related to the peculiar physicochemical properties of the nanostate with respect to the bulk material. Furthermore growth rate of D. tertiolecta was significantly affected by nano ZnO exposure. Our findings suggest that the primary particle size of the dispersed particles affect the overall toxicity.

Authors+Show Affiliations

Enea CR Portici, P. le E. Fermi, 1, 80055 - Portici, Naples, Italy. sonia.manzo@enea.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23361041

Citation

Manzo, Sonia, et al. "Toxic Effects of ZnO Nanoparticles Towards Marine Algae Dunaliella Tertiolecta." The Science of the Total Environment, vol. 445-446, 2013, pp. 371-6.
Manzo S, Miglietta ML, Rametta G, et al. Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta. Sci Total Environ. 2013;445-446:371-6.
Manzo, S., Miglietta, M. L., Rametta, G., Buono, S., & Di Francia, G. (2013). Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta. The Science of the Total Environment, 445-446, 371-6. https://doi.org/10.1016/j.scitotenv.2012.12.051
Manzo S, et al. Toxic Effects of ZnO Nanoparticles Towards Marine Algae Dunaliella Tertiolecta. Sci Total Environ. 2013 Feb 15;445-446:371-6. PubMed PMID: 23361041.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta. AU - Manzo,Sonia, AU - Miglietta,Maria Lucia, AU - Rametta,Gabriella, AU - Buono,Silvia, AU - Di Francia,Girolamo, Y1 - 2013/01/23/ PY - 2012/09/14/received PY - 2012/12/18/revised PY - 2012/12/18/accepted PY - 2013/1/31/entrez PY - 2013/1/31/pubmed PY - 2013/8/9/medline SP - 371 EP - 6 JF - The Science of the total environment JO - Sci Total Environ VL - 445-446 N2 - Dose response curve and population growth rate alterations of marine Chlorophyte Dunaliella tertiolecta derived from the exposure to ZnO nanoparticles were evaluated. Bulk ZnO and ionic zinc were also investigated for comparison. At the same time, the aggregation state and particle size distribution were monitored. The evaluated 50% effect concentration (EC50 1.94 [0.78-2.31] mg Zn L(-1)) indicates that nano ZnO is more toxic than its bulk counterpart (EC50 3.57 [2.77-4.80] mg Zn L(-1)). Cross-referencing the toxicity parameters calculated for ZnCl(2) (EC50 0.65 [0.36-0.70] mg Zn L(-1)) and the dissolution properties of the ZnO, it can be gathered that the higher toxicity of nano ZnO is most likely related to the peculiar physicochemical properties of the nanostate with respect to the bulk material. Furthermore growth rate of D. tertiolecta was significantly affected by nano ZnO exposure. Our findings suggest that the primary particle size of the dispersed particles affect the overall toxicity. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/23361041/Toxic_effects_of_ZnO_nanoparticles_towards_marine_algae_Dunaliella_tertiolecta_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(12)01608-7 DB - PRIME DP - Unbound Medicine ER -