Following his visit in 2019, Roque Minari, an Experienced Researcher from CONICET-Universidad del Litoral (Argentina), was back to UPV/EHU-POLYMAT (Spain) in May. Our project coordinator David Mecerreyes and him have been colloborating for years now, and they currently cosupervise the work of IONBIKE secondee Ana Aguzin. Roque´s secondment has been useful to perform some lab work and plan further collaborations in the field of iongels for bioelectronics. Thank you, Roque!