ACKNOWLEDGMENTS
This work would not have been possible without the encouragement, support, feedback, and cooperation of many individuals both inside and outside of NIOSH and its Nanotechnology Research Center, including John Howard, Paul Schulte, George Conway, Lani Boldt, Gordon Anderson, Chuck Geraci, Mary Lynn Woebkenberg, Andrew Maynard, Kenneth Linch, Fred Blosser, Max Lum, Aleks Stefaniak, Pratim Biswas, Mike Roco, all of the nanoparticle profile contributors, the interactive database link collaborators including the NIOSH Web Team, Rice University and the International Council on Nanotechnology, Oregon State University, and the Woodrow Wilson Center for Scholars.