On Monday 23rd April 2018 we had our 4th meeting in Wageningen presenting updates to the users and researchers involved in the NWO/TTW Vidi project. Niccolo and Lotte gave presentations and all members of the team including the Aspasias Setareh and Eddie and MSc student Jeroen were present. A lot of experiments are currently ongoing and therefore we expect more conclusive results in the next meeting in November 2018.