Updated publication reference for PubMed record(s): 29813090. Nanoparticles are more and more used in industrial process, food, medicinal or daily goods. At the end of their life, most of them are discharged in the environment where they impact the ecological equilibrium. Bacteria are one of the first targets of the nanoparticles in the environment. To evaluate the impact of silver nanoparticles on the physiology of Bacillus subtilis, we studied the intracellular proteome of bacteria exposed to different nanoparticles during the stationary phase.