As a part of the Croatian-German bilateral project “Multiplex characterization platform for nano-bio interface”, NanoFaceS collaborator Krunoslav Ilić visited the Leibniz Institute for Photonic Technology (Leibniz-IPHT) in Jena, Germany from July 1st to 26th 2019. Under the supervision of Prof Wolfgang Frizsche, he worked on the examination of protein adsorption to the nanoparticle surface by the localised surface plasmon resonance (LSPR) method, thereby continuing and further developing the previous experiments borne out of the Croatian-German collaboration.