Background Engineered nanomaterials being developed for military applications include thermites, coatings, obscurants, and textiles. Their extremely small size (1-100 nm) leads to unique properties such as large surface area, great strength, small mass, and a large capacity for manipulation of surface chemistry. Engineer Research and Development Center (ERDC) is leading the way to understand the unique environmental attributes of these materials. Our research goal is to assist nanotechnology developers while balancing environmental risks. Benefits The capabilities and research conducted at ERDC have provided tools to identify potential risk pathways and decision-analysis tools to prioritize research needs. Research conducted at ERDC will provide scientists and engineers using nanomaterials with the tools and knowledge to develop and acquire Army materiel that poses the minimum hazard to soldiers and the environment. Significant Accomplishments Risk and decision analysis tools for prioritizing research needs for the military and technology developers. Collaborations with commercial and government technology developers to address priority materials. Studies characterizing the behavior of engineered nanomaterials in environmental systems. Recognized leadership and advising role to U.S. Office of the Secretary of Defense, U.S. Environmental Protection Agency, and North Atlantic Treaty Organisation (NATO). Upcoming Events 7th International Conference on the Environmental Effects of Nanoparticles and Nanomaterials, 10-12 September 2012, Banff Centre, Banff, Alberta, Canada Hot Topics! Nano-TAB: Specification to Facilitate the Data Exchange Among Nanotechnology Resources Stacey Harper, PhD Oregon State University NIH Cancer Biomedical Informatics Grid (caBIG®) ICR Nanotechnology Working Group Nathan Baker Pacific Northwest National Laboratory The NanoParticle Ontology for Nanoinformatics Nathan Baker Pacific Northwest National Laboratory REACH: Registration, Evaluation, Authorization, (and Restriction) of Chemicals E. Spencer Williams, Ph.D. Baylor University

Transmission electron microscope image of multi-wall carbon nanotubes with heavy oxidation Scanning electron microscope image of fullerene crystals in toluene Ceriodaphnia dubia exposure showing multiwalled carbon nanotubes in the gut Multiwall Carbon Nanotubes (MWCNT) time lapse (60 minutes) settling in moderated hard water. Raw MWCNT (left) versus hydroxylated MWCNT (Right). Duration: 60 min; Intervals: 12 sec