Nanomaterial cytotoxicity is composition, size, and cell type dependent

Table 2 Properties of Nanoparticles in Solution.

Particles	Description	Average Size	Average Size in PBS	Average Size in Culture Media
TiO₂	Titanium Dioxide (Anantase)	5-10 nm	200-400 nm	350-500 nm
SiO₂	Silicon Oxide	30 nm	200-400 nm	300-500 nm
MWCNT <8		< 8 nm	180-240 nm	450-550 nm
MWCNT 20-30	MWCNT	20-30 nm	100-350 nm	450-500 nm
MWCNT >50		> 50 nm	70-153 nm*	700-800 nm

Nanoparticles were sized using DLS in PBS and cell culture media with serum. Values were compared with manufacturers' reported particle size. Materials were suspended in solution via sonication and stored overnight before repeat sonication cycles and sizing. Values reported are nanoparticle population range.
* - Less tendency to aggregate in PBS and culture media.

ISSN: 1743-8977