Physicochemical characterization of nanoparticles in food additives in the context of risk identification, Verleysen, Eveline, Waegeneers Nadia, De Vos Sandra, Brassinne Frederic, Ledecq Marina, Van Steen Frederic, Andjelkovic Mirjana, Janssens Raphael, Mathioudaki Stella, Delfosse Lotte, et al. , EFSA Supporting Publications, Jan-06-2021, Volume 18, Issue 6, (2021)