Role of chemical composition and redox modification of poorly soluble nanomaterials on their ability to enhance allergic airway sensitisation in mice

Table 2 Physicochemical characteristics of the nanoparticles

	Primary particle size (Mean ± SD) (nm)	Particle diameter in water (Median) (nm)	Particle diameter in cell culture medium + 10% foetal calf serum (Mean ± SD) (arbitrary units)
Measured with →	STEM	Disc Centrifuge (128 μg/mL)	DLS (128 μg/mL)
Anatase TiO₂	10-15^a	121^b	–
CeO₂ NM212	17.1 ± 10.9	–	428 ± 11.7
CeO₂(0% Zr)	4.7 ± 1.4	39	288 ± 4.8
CeO₂(27% Zr)	4.6 ± 1.4	40	176 ± 4.0
CeO₂(78% Zr)	4.7 ± 1.4	41	415 ± 27.6
Co₃O₄(0% Fe₂O₃)	17.5 ± 15.0	42	176 ± 2.9
Co₃O₄(25% Fe₂O₃)	10.6 ± 3.6	62	303 ± 6.7
Co₃O₄(75% Fe₂O₃)	8.6 ± 1.7	39	373 ± 9.9
Co₃O₄(0% Fe₃O₄)	18.7 ± 11.2	44	160 ± 1.3
Co₃O₄(25% Fe₃O₄)	13.0 ± 5.2	61	828 ± 3.8
Co₃O₄(75% Fe₃O₄)	10.2 ± 6.2	69	1165 ± 66.5

^aInformation provided by the manufacturer instead of measured with STEM; ^b Particles size as measured in our previous study with Nanoparticle Tracking Analysis instead of Disc Centrifuge; SD Standard Deviation, STEM Scanning Transmission Electron Microscopy, DLS Dynamic Light Scattering, – = no data available

ISSN: 1743-8977