Linked Life Data

21356181

Source:http://linkedlifedata.com/resource/pubmed/id/21356181

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2011-3-14
pubmed:abstractText
The influence of ZnO nanoparticle morphology on its toxicity for marine diatoms was evaluated. Four ZnO nanoparticle motifs, possessing distinctive sizes and shapes, were synthesized without adding surfactants. Diameters of ZnO spheres ranged from 6.3 nm to 15.7 nm, and lengths of rod-shaped particles were 242 nm to 862 nm. Their effects on the growth of the marine diatoms, Thalassiosira pseudonana, Chaetoceros gracilis, and Phaeodactylum tricornutum, were determined in laboratory cultures. Between 4.1 and 4.9% of the Zn from all types of nanoparticles dissolved within 72 h and was neither concentration dependent nor morphology dependent. Addition of all nanoparticles at all concentrations tested stopped growth of T. pseudonana and C. gracilis, whereas P. tricornutum was the least sensitive, with its growth rate inversely proportional to nanoparticle concentration. Bioaccumulation of Zn released from nanoparticles in T. pseudonana was sufficient to kill this diatom. The toxicity of rod-shaped particles to P. triocornutum was noted to be greater than that of the spheres. The overall results suggest that toxicity studies assessing the effects of nanoparticles on aquatic organisms need to consider both the dissolution of these particles and the cellular interaction of nanoparticle aggregates.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1879-1514
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
186-96
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Effect of morphology of ZnO nanostructures on their toxicity to marine algae.
pubmed:affiliation
Department of Chemistry, State University of New York at Stony Brook, 11794-3400, United States.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't