Table 1.

Characteristics of the inorganic nanoparticles used in experimentation.

	Mean radius (nm)	Concentration per flask (g/mL)	Crystalline structure	Surface chemistry
Silica	60 ± 1.3	3.3 × 10-2	amorphous	hydrophilic
Silica/Iron Oxide	80 ± 2.5	2.2 × 10-3	amorphous silica, crystalline iron oxide	hydrophilic
PEG-coated Au	30 ± 0.15	1.1 × 10-4	crystalline	hydrophilic