Fig. 6From: Recent development in functional nanomaterials for sustainable and smart agricultural chemical technologiesPotential Migration and Chemical Transformation of Ag NPs, AgNO3, and Ag2S NPs Across Seed Coats [115]. a Ag NPs forms thiolate complexes in the internal layer of seed coat (parenchyma cells); b AgNO3 would form AgCl precipitate in the external layer of seed coat (epidermis); c Ag2S NPs could cross seed coat without significant chemical modificationsBack to article page