From 5th to 8th of November 2023 PURE member Alexander Zollner and Cecília Roque attended the 42nd International Symposium on the Separation of Proteins, Peptides and Polynucleotides (ISPPP) in Vienna. Alexander gave an insight in his current research in “Chromatography-based purification of enveloped virus-like particles displaying influenza N2 neuraminidase surface antigen for an immunologic study in mice” in a 5-minute flash talk and a poster presentation.