1. Balas F, Arruebo M, Urrutia J, Santamaria J (2010) Reported nanosafety practices in research laboratories worldwide. Nat Nanotechnol 5:93–96
2. Behra R, Krug H (2008) Nanoparticles at large. Nat Nanotechnol 3:253–254
3. Bernard HR (ed) (1998) Handbook of methods in cultural anthropology. AltaMira Press, Walnut Creek
4. California Department of Toxic Substances Control (DTSC) (2008) Chemical information call-in. http://www.dtsc.ca.gov/pollutionprevention/chemical_call_in.cfm . Accessed June 1, 2011
5. California Department of Toxic Substances Control (DTSC) (2010) Chemical information call-in: nano metals, nano metal oxides, and quantum dots. http://www.dtsc.ca.gov/TechnologyDevelopment/Nanotechnology/nanometalcallin.cfm . Accessed June 1, 2011