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Adaptive Interactions between Zinc Oxide Nanoparticles and Chlorella sp.
MedLine Citation:
PMID:  23046143     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The effects of ZnO nanoparticles (NPs) interacting with single-celled green algae, Chlorella sp., have been found to be bilateral. Specifically, our electron microscopy, plant cell, and fluorescence assays showed that the adsorption and aggregation of ZnO NPs compromised algal cell morphology, viability and membrane integrity, resulting from zinc ion dissolution as well as possible mechanical cell damage induced by the NPs. Conversely, algal cells displayed a remarkable capability of self protection by minimizing their surface area through aggregation mediated by the oppositely charged metal ions and by suppressing zinc ion release from the NPs through exudation, as evidenced by inductively coupled plasma mass spectrometry, zeta potential and attenuated total reflectance-Fourier transform infrared spectroscopy. This study illustrates the adaptive nature and complexity in potential ecological response to discharged nanomaterials.
Authors:
Pengyu Chen; Brian Powell; Monika Mortimer; Pu Chun Ke
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-9
Journal Detail:
Title:  Environmental science & technology     Volume:  -     ISSN:  1520-5851     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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