Professor Eleni A. Deliyanni from the Department of Chemistry of the University of Thessaloniki (Greece) is visiting our group and looking for potential collaboration in the frame of our project OPUS-13 nr 2017/25/B/ST8/01592 (Understanding the mechanism of lignin-based model molecules selective conversions to phenolics via ultrasound-assisted heterogeneous photocatalysis) financed by the National Science Centre in Poland (https://​pho​to​-cata​ly​sis​.org/​v​i​e​w​.​p​h​p​?​i​d​=1139).