Develop and harmonise traceable methodologies for measuring:
Particle size and concentration of small (diameter < 10 nm) MONPs and their typically non-spherical aggregates and/or agglomerates;
Lipid composition, RNA loading and structural integrity of lipid-based nanoparticles;
Surface properties, including the amount, chemical composition, and homogeneity of the surface coating.
Traceable size and concentration measurements of small MONPs by AFM-SEM-EDX and SAXS;
Lipid composition of LNPs and liposomes by LC-MS/MS and Raman micro-spectroscopy
RNA loading of lipid-based NPs by HPLC-UV and capillary electrophoresis (CE-LIF)
Structural properties and structural integrity of the LNPs and liposomes by complementary approaches including SAXS, WAXS, SANS and cryo-EM coupled with/without RNA staining;
Characterisation of surface coatings by DSC, TGA, UHPLC-HRMS/MS, qNMR, SAXS, SANS and 3D-cryo-TOF-SIMS;
Data handling and harmonisation

X-ray Metrology with Synchrotron Radiation, Department 7.2, PTB
Short bio: Dr. Robin Schürmann is a senior scientist in X-ray radiometry at the Physikalisch-Technische Bundesanstalt (PTB). He holds a PhD in chemical physics on the physicochemical mechanisms of radio-enhancement in cancer therapy from the University of Potsdam and has broad expertise in the characterisation of nanoparticles and surfaces.He is an expert in traceable measurements of nanomaterials with synchrotron radiation

Short bio: Dr. Christian Gollwitzer is the group leader of Working Group 7.21 - X-Ray Radiometry at the Physikalisch-Technische Bundesanstalt (PTB), which operates the four-crystal monochromator beamline at the synchrotron radiation facility BESSY II in Berlin. He earned his PhD in physics from the University of Bayreuth, with a focus on magnetic gels and fluids. Throughout his career, he has worked in various positions at PTB and the Federal Institute for Materials Research and Testing (BAM), where he gained expertise in applied X-ray techniques such as radiography, computed tomography, and small-angle X-ray scattering.
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.