Trendy workout clothes may advertise that special silver nanoparticles embedded in the fabric will cut the sweaty odor that builds up from repeated gym visits. It turns out there's some truth to these claims. In this video, Reactions explains how all that is possible: https://youtu.be/3UcnYMFTzFQ. And don't forget: #NationalNanoDay is October 9, and ACS is celebrating science on the nanoscale all week. To learn more, visit www.acs.org/nano.