...Toxicity of Differently Sized Colloidal Amorphous SiO2
cm2/h 0.034 0.044 0.066 0.088 Zeta potential ± SD (Zetasizer) mV −43 −48 −55 −50 Surface chemistry (XPS) a atomic % O 69 | Si 28 | C 2 | Na 1 O 65 | Si 29 | C 4 | Na 1 | N 0.6 O 68 | Si 29 | C 2 | Na 1 O 53 | Si 40 | C 5 | Na 2 | N...