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dc.contributor.author
Cledón, Maximiliano
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dc.contributor.author
Brar, Satinder Kaur
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dc.contributor.author
Zhang, Tian C
dc.contributor.other
Brar, Satinder Kaur
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dc.contributor.other
Zhang, Tian
dc.contributor.other
Verma,Mausam
dc.contributor.other
Surampalli, Rao
dc.contributor.other
Tyagi, Rajeshwar
dc.date.available
2022-07-16T02:12:30Z
dc.date.issued
2015
dc.identifier.citation
Cledón, Maximiliano; Brar, Satinder Kaur; Zhang, Tian C; Nano-Ecotoxicology of Natural and Engineered Nanomaterials for Microorganisms; American Society of Civil Engineers; 2015; 439-467
dc.identifier.isbn
1-5231-0569-0
dc.identifier.uri
http://hdl.handle.net/11336/162262
dc.description.abstract
The mobility of nanomaterials (NMs) varies according to their surface charges, polarity and the media properties they come into contact. When compared to bulk materials their degradability is lower and solubility is slower. These two facts result in longer bioavailability periods and increased possibility of transport to further distances. In general terms, all of NMs produce toxic effects in living organisms, again depending on the interaction with the surrounding media. Given the possibility of enhanced transport, it could be assumed that soon or later NMs will reach environmental conditions that trigger their toxic effects to the local biota. The physiological pathway they trigger is linked to the cellular production of Reactive Oxygen Species (ROS), which would further result in reduction of cellular growth and even cell death, depending on the concentrations of NMs and the sensibility of the given organism. NMs’ toxicity and transport can vary with 1) time (due to changes suffered once in the environment), 2) space (due to seasonal or other fluctuations in environmental features), and 3) the species. Therefore, a general protocol for NMs testing should be developed. In general, such a general protocol should use NMs and their aged derivates for determination of toxicity in at least three local species of different trophic levels under different conditions (e.g., temperature, light, or environmental conditions such as different dissolved organic matters, aerobic or anaerobic settings) (Blaise et al. 2008). There are a large number of standardized bioassays that can be also used for evaluating NMs toxicity. All of them use different medium conditions and different target organisms, which can produce significantly different results.This chapter focuses on nano-ecotoxicology of natural and engineering NMs for microorganisms. The chapter starts with mobility, bioavailability and degradability of NMs in the environment, and then moves into general considerations of toxicity and eco-toxicity of NMs, followed by discussions about the comet and the micronucleus assays, including the K micronuclei and Ames tests and Highthroughput screening and current status in the related areas.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Society of Civil Engineers
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Movility and removal
dc.subject
Ecotoxicity
dc.subject
Reactive Oxygen Species
dc.subject
Bioassays
dc.subject.classification
Otras Nanotecnología
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dc.subject.classification
Nanotecnología
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Nano-Ecotoxicology of Natural and Engineered Nanomaterials for Microorganisms
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2022-07-04T19:44:33Z
dc.journal.pagination
439-467
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Reston
dc.description.fil
Fil: Cledón, Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Brar, Satinder Kaur. No especifíca;
dc.description.fil
Fil: Zhang, Tian C. No especifíca;
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://leitir.is/discovery/fulldisplay/alma991014341655406886/354ILC_NETWORK:10000_UNION
dc.conicet.paginas
643
dc.source.titulo
Nanomaterials in the Environment
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