To harmonise and standardise robust and efficient sample preparation methods for the measurement of nanoparticle stability and their biotransformation in liquid biological matrices, minimising matrix interferences.
Fractionation strategies to separate particles from proteins and other matrix components, including size exclusion chromatography (SEC), asymmetric flow field flow fractionaction (AF4) and analytical ultracentrifugation (AUC). Special attention will be paid to particle recovery rates (that should be ≥ 70 %) and repeatability/reproducibility of the methods applied to different formulations;
Bio-SAXS compared to the hyphenation of AF4 with SAXS

LNE, France
Short bio: Enrica Alasonati is a permanent researcher at LNE since 2011. She obtained her PhD in Environmental Chemistry in 2009 at EPFL (Ecole Polytechnique Fédérale de Lausanne), Switzerland, working on the development of fractionation techniques for the characterization of environmental colloids. She is an expert in fractionation techniques and nanoparticles analysis, responsible for the speciation analysis activities in the department and she is vice-chairman of the G4F, French FFF group in the French Separative Science Association. She was responsible for several tasks/WP in several EMRP/EMPIR JRPs (ENV08 WFD, ENV51 MeTra, METVES II, PlasticTrace) and participates today in projects and workgroups devoted to the development of reliable methods for the characterisation of nanomedicines, nano-food additives and micro and nanoplastics in complex environments, including biological, environment and food matrices.
We are collecting results that will be posted here soon. Stay tuned.
The METRINO project has received funding from the European Partnership on Metrology (Grant #22HLT04), co-financed from the European Union’s Horizon Europe Research and Innovation Programme and by the Participating States. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or EURAMET. Neither the European Union nor the granting authority can be held responsible for them.