A composition and methods to bind and remove toxic agents from a subject exposed to the toxic agents are described herein. The composition comprises a stealth agent and scavenging agent bound to a nanoparticle platform. The stealth agent prevents the nanomedicine from detection and elimination by the immune system allowing the scavenging agent to bind the target toxic agent. The stealth agent comprises an exposing group that once removed from the stealth agent allows the nanomedicine and bound toxic agent to be detected and eliminated from the subjects body.
