TY - GEN AU - Powell,Maria C AU - Kanarek,Marty S TI - Nanomaterial health effects--part 1: background and current knowledge SN - 1098-1861 PY - 2006///0605 KW - Animals KW - Environmental Exposure KW - adverse effects KW - Hazardous Substances KW - toxicity KW - Humans KW - Nanostructures KW - Nanotechnology KW - Risk Assessment KW - Toxicity Tests N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Review ER -