131263 20240207154753.0 doi 10.1039/c6en00014b sideral 98828 ART-2016-98828 eng Clemente, A. (orcid)0000-0002-8787-117X Fluorescently labelled SiO2 nanoparticles as tracers in natural waters: Dependence of detection limits on environmental conditions 2016 The identification of engineered nanomaterials (ENMs) in the environment is of uttermost importance, in view of the possibility of harmful effects on living organisms. While it is clear that monitoring their presence and accumulation is essential in any risk assessment scenario, this is a challenging task. On the one hand, ENMs are present at trace concentration levels, requiring extremely sensitive sampling and analysis methods. On the other hand, specific identification of ENMs is further complicated by the simultaneous presence of other nanomaterials (often analogous in terms of size and properties) already present in the environment. Therefore, the development of labels that allow unequivocal, highly sensitive identification of specific nanomaterials is desirable. Here, we report the development of stable fluorescent labels for silica (SiO2) nanoparticles. The markers developed allow monitoring of their presence in environmentally relevant media at low detection levels. Identification of labelling signals has been performed using both online and offline techniques under a variety of conditions. © 2016 The Royal Society of Chemistry. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/EC/FP7/263147/EU/Development of reference methods for hazard identification, risk assessment and LCA of engineered nanomaterials/NANOVALID info:eu-repo/grantAgreement/ES/MINECO/JCI-2012-13421 info:eu-repo/grantAgreement/ES/MINECO/RYC-2011-07641 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 6.047 2016 CHEMISTRY, MULTIDISCIPLINARY 24 / 164 = 0.146 2016 Q1 T1 ENVIRONMENTAL SCIENCES 14 / 229 = 0.061 2016 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 17 / 85 = 0.2 2016 Q1 T1 1.562 2016 Materials Science (miscellaneous) 2016 Q1 Environmental Science (miscellaneous) 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Moreno, N. Lobera, M.P. Universidad de Zaragoza (orcid)0000-0002-2436-1041 Balas, F. Universidad de Zaragoza (orcid)0000-0001-5512-0075 Santamaria, J. Universidad de Zaragoza (orcid)0000-0002-8701-9745 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 3, 3 (2016), 631-637 Environ. sci. nano Environmental science. Nano 2051-8153 835474 http://zaguan.unizar.es/record/131263/files/texto_completo.pdf Postprint 1159856 http://zaguan.unizar.es/record/131263/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:131263 articulos driver 2024-02-07-14:35:41 ARTICLE