Evaluating the potential of gold, silver, and silica nanoparticles to saturate mononuclear phagocytic system tissues under repeat dosing conditions oleh James L. Weaver, Grainne A. Tobin, Taylor Ingle, Simona Bancos, David Stevens, Rodney Rouse, Kristina E. Howard, David Goodwin, Alan Knapton, Xiaohong Li, Katherine Shea, Sharron Stewart, Lin Xu, Peter L. Goering, Qin Zhang, Paul C. Howard, Jessie Collins, Saeed Khan, Kidon Sung, Katherine M. Tyner