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Zinc oxide-engineered nanoparticles: dissolution and toxicity to marine phytoplankton.
Environ Toxicol Chem. 2010 Dec; 29(12):2814-22.ET

Abstract

It is now widely recognized that dissolution plays an important role in metallic nanoparticle toxicity, but to what extent remains unclear. In the present study, it was found that ZnO-engineered nanoparticle (ZnO-EN) toxicity to the marine diatom Thalassiosira pseudonana could be solely explained by zinc ion (Zn(2+)) release. This is based on comparable inhibitive effects from ZnO-EN addition media, with or without the ultrafiltration through a 3-kD membrane, and from the media in which only Zn(2+) was added. Considering the importance of dissolution in ZnO-EN toxicity, Zn(2+) release kinetics was systematically examined under different conditions for the first time. It was found to be mainly influenced by pH as well as the specific surface area of the nanoparticles. In contrast, natural organic compounds either enhance or reduce Zn(2+) release, depending on their chemical composition and concentration. Compared with deionized water, ZnO-EN dissolution rates were accelerated in seawater, whereas ZnO-EN concentration itself only had a very small effect on Zn(2+) release. Therefore, dissolution as affected by several physicochemical factors should not be neglected in the effects, behavior, and fate of ENs in the environment.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Miao AJ
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province 210093, China. miaoaj@nju.edu.cn
Zhang XY
No affiliation info available
Luo Z
No affiliation info available
Chen CS
No affiliation info available
Chin WC
No affiliation info available
Santschi PH
No affiliation info available
Quigg A
No affiliation info available

MeSH

AnimalsCations, DivalentDiatomsKineticsNanoparticlesZincZinc Oxide

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

20931607

Citation

Miao, Ai-Jun, et al. "Zinc Oxide-engineered Nanoparticles: Dissolution and Toxicity to Marine Phytoplankton." Environmental Toxicology and Chemistry, vol. 29, no. 12, 2010, pp. 2814-22.
Miao AJ, Zhang XY, Luo Z, et al. Zinc oxide-engineered nanoparticles: dissolution and toxicity to marine phytoplankton. Environ Toxicol Chem. 2010;29(12):2814-22.
Miao, A. J., Zhang, X. Y., Luo, Z., Chen, C. S., Chin, W. C., Santschi, P. H., & Quigg, A. (2010). Zinc oxide-engineered nanoparticles: dissolution and toxicity to marine phytoplankton. Environmental Toxicology and Chemistry, 29(12), 2814-22. https://doi.org/10.1002/etc.340
Miao AJ, et al. Zinc Oxide-engineered Nanoparticles: Dissolution and Toxicity to Marine Phytoplankton. Environ Toxicol Chem. 2010;29(12):2814-22. PubMed PMID: 20931607.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Zinc oxide-engineered nanoparticles: dissolution and toxicity to marine phytoplankton. AU - Miao,Ai-Jun, AU - Zhang,Xue-Yin, AU - Luo,Zhiping, AU - Chen,Chi-Shuo, AU - Chin,Wei-Chun, AU - Santschi,Peter H, AU - Quigg,Antonietta, Y1 - 2010/10/07/ PY - 2010/03/21/received PY - 2010/06/20/revised PY - 2010/07/30/accepted PY - 2010/10/9/entrez PY - 2010/10/12/pubmed PY - 2011/6/10/medline SP - 2814 EP - 22 JF - Environmental toxicology and chemistry JO - Environ Toxicol Chem VL - 29 IS - 12 N2 - It is now widely recognized that dissolution plays an important role in metallic nanoparticle toxicity, but to what extent remains unclear. In the present study, it was found that ZnO-engineered nanoparticle (ZnO-EN) toxicity to the marine diatom Thalassiosira pseudonana could be solely explained by zinc ion (Zn(2+)) release. This is based on comparable inhibitive effects from ZnO-EN addition media, with or without the ultrafiltration through a 3-kD membrane, and from the media in which only Zn(2+) was added. Considering the importance of dissolution in ZnO-EN toxicity, Zn(2+) release kinetics was systematically examined under different conditions for the first time. It was found to be mainly influenced by pH as well as the specific surface area of the nanoparticles. In contrast, natural organic compounds either enhance or reduce Zn(2+) release, depending on their chemical composition and concentration. Compared with deionized water, ZnO-EN dissolution rates were accelerated in seawater, whereas ZnO-EN concentration itself only had a very small effect on Zn(2+) release. Therefore, dissolution as affected by several physicochemical factors should not be neglected in the effects, behavior, and fate of ENs in the environment. SN - 1552-8618 UR - https://www.unboundmedicine.com/medline/citation/20931607/Zinc_oxide_engineered_nanoparticles:_dissolution_and_toxicity_to_marine_phytoplankton_ L2 - https://doi.org/10.1002/etc.340 DB - PRIME DP - Unbound Medicine ER -