Engineered nanomaterials are at the forefront of ecotoxicologist agendas due to their widespread use in a broad range of industrial and domestic sectors. Actually, they are manufactured in increasing amounts year-by-year. Particularly, nanoscopic zerovalent iron started to be used in various countries around the world for land and groundwater remediation presenting, apparently, encouraging removal rates particularly with organic compounds. Indeed, the use of iron in remediation activities mainly via the Fenton reaction is considered a sort of common practice. Nevertheless, since now few data are available about the potential adverse effects of the release, even if controlled, of iron within the ecosystem. Terrestrial plants may be considered as interesting biological models for assessing its potential impacts. The effect of ionic, micro- and nano-sized iron were compared using Lepidium sativum as reference biological model. Germination, elongation and biomass production inhibition were taken into consideration as endpoints. Besides the full physico-chemical characterisation of the selected chemicals, neutron activation offered the possibility to label them in a way that avoids surface modification and permits both localization and quantification within the model organisms. The main results showed the following toxicity trend: nano-sized iron < micro-sized iron < ionic iron.

Effects of ionic, micro- and nano-sized iron on Lepidium sativum as a reference biological model / G. Libralato, A. Costa Devoti, L. Manodori, S. Totaro, I. Micetic, E. Sabbioni, A. Volpi Ghirardini, F. Groppi, S. Manenti - In: SETAC Europe 23. annual meeting : Building a better future : responsible innovation and environmental protection : abstracts book : 12-16 May 2013, Glasgow Brussels : SETAC Europe, 2013. - pp. 304-304 (( Intervento presentato al 23. convegno Annual meeting SETAC Europe tenutosi a Glasgow (Scotland) nel 2013.

Effects of ionic, micro- and nano-sized iron on Lepidium sativum as a reference biological model

F. Groppi;S. Manenti
2013

Abstract

Engineered nanomaterials are at the forefront of ecotoxicologist agendas due to their widespread use in a broad range of industrial and domestic sectors. Actually, they are manufactured in increasing amounts year-by-year. Particularly, nanoscopic zerovalent iron started to be used in various countries around the world for land and groundwater remediation presenting, apparently, encouraging removal rates particularly with organic compounds. Indeed, the use of iron in remediation activities mainly via the Fenton reaction is considered a sort of common practice. Nevertheless, since now few data are available about the potential adverse effects of the release, even if controlled, of iron within the ecosystem. Terrestrial plants may be considered as interesting biological models for assessing its potential impacts. The effect of ionic, micro- and nano-sized iron were compared using Lepidium sativum as reference biological model. Germination, elongation and biomass production inhibition were taken into consideration as endpoints. Besides the full physico-chemical characterisation of the selected chemicals, neutron activation offered the possibility to label them in a way that avoids surface modification and permits both localization and quantification within the model organisms. The main results showed the following toxicity trend: nano-sized iron < micro-sized iron < ionic iron.
No
English
engineered nanomaterials ; nano-iron ; Lepidium sativum ; nano-eco-toxicology
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Intervento a convegno
Ricerca applicata
Pubblicazione scientifica
SETAC Europe 23. annual meeting : Building a better future : responsible innovation and environmental protection : abstracts book : 12-16 May 2013, Glasgow 
Brussels
SETAC Europe
2013
304
304
1
Volume a diffusione internazionale
Annual meeting SETAC Europe
Glasgow (Scotland)
2013
23
Society of environmental toxicology and chemistry
Convegno internazionale
Intervento inviato
G. Libralato, A. Costa Devoti, L. Manodori, S. Totaro, I. Micetic, E. Sabbioni, A. Volpi Ghirardini, F. Groppi, S. Manenti
Book Part (author)
none
273
Effects of ionic, micro- and nano-sized iron on Lepidium sativum as a reference biological model / G. Libralato, A. Costa Devoti, L. Manodori, S. Totaro, I. Micetic, E. Sabbioni, A. Volpi Ghirardini, F. Groppi, S. Manenti - In: SETAC Europe 23. annual meeting : Building a better future : responsible innovation and environmental protection : abstracts book : 12-16 May 2013, Glasgow Brussels : SETAC Europe, 2013. - pp. 304-304 (( Intervento presentato al 23. convegno Annual meeting SETAC Europe tenutosi a Glasgow (Scotland) nel 2013.
info:eu-repo/semantics/conferenceObject
9
Prodotti della ricerca::03 - Contributo in volume
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/265001
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