"Nano-silver" is the name Rima Laibow gave to her own 10 PPM ionic silver product. Nothing unique about it at all, just the usual claims that it is somehow uniquely better than other ionic solutions and the hype about a shipment being rejected.
You do recognize the name Rima Laibow, right? Wife of ex- army psyops leader General Bert Stubblebine. Ring a bell?