Colloidal Surface Active Maghemite Nanoparticles for Biologically Safe Cr-VI Remediation: from Core-Shell Nanostructures to Pilot Plant Development

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33159757" target="_blank" >RIV/61989592:15310/16:33159757 - isvavai.cz</a>
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1002/chem.201600544/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/chem.201600544/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.201600544" target="_blank" >10.1002/chem.201600544</a>

Result language
angličtina
Original language name
Colloidal Surface Active Maghemite Nanoparticles for Biologically Safe Cr-VI Remediation: from Core-Shell Nanostructures to Pilot Plant Development
Original language description
The present study is aimed at the exploration of achievable improvements for Cr-VI ex situ and in situ water remediation by using novel naked colloidal maghemite (gamma-Fe2O3) nanoparticles (surface active maghemite nanoparticles, SAMNs). The reliability of SAMNs for Cr-VI binding and removal was demonstrated, and SAMN@Cr-VI complex was characterized, as well as the covalent nature of the absorption was unequivocally proved. SAMNs were structurally and magnetically well conserved after Cr-VI binding. Thus, in consideration of their affinity for Cr-VI, SAMNs were exploited in a biological model system, mimicking a real in situ application. The assay evidenced a progressive reduction of revertant colonies of Salmonella typhimurium TA100 strain, as maghemite nanoparticles concentration increased, till the complete suppression of Cr-VI mutagen effect. Finally, an automatic modular pilot system for continuous magnetic removal and recovery of Cr-VI from water is proposed. SAMNs, thanks to their colloidal, binding, and catalytic properties, represent a promising tool as a reliable nanomaterial for water remediation by Cr-VI.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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