Complexation of neptunium(V) with Bacillus subtilis endospore surfaces and their exudates

► Np(V) adsorption onto B. subtilis endospores is influenced by endospore exudates. ► Spectrophotometric investigations revealed 1:1 neptunyl-dipicolinate complexes. ► Endospore exudates controlled Np(V) partitioning in simulated systems.