For readers following the Samsung washing machine controversy, marketing of Samsung’s Silver Nano washing machine was curtailed for a while last year in the US after EPA indicated it intended to regulate silver ion generators as pesticides under FIFRA.  EPA officially announced its position on silver ion generators in the September 21, 2007 federal register.  Samsung is now marketing a SilverCare washing machine with antimicrobial properties in the United States.  No word on whether the new machines use silver nanoparticles (doubtful). Stay tuned.