I am a physicist by training, who has worked for two decades on the fonctionalisation of nanoparticles, their structures, and their applications in biological research, in particular for imaging. In this context I became interested in errors and fraud, and in the correction of science once problems have been flagged up. I am coordinating PI of the ERC Synergy project NanoBubbles (https://nanobubbles.hypotheses.org/) which aims at better understanding of how, when and why science fails to correct itself.