Quantification of Internalized Silica Nanoparticles via STED Microscopy

Table 1

Physicochemical properties of SNPs used in the study.

Sample	Diameter EM [nm]	Hydrodynamic diameter [nm]			Zeta potential [mV]		BET surface area [m^2g^−1]
		Water	DMEM	Water	DMEM	DMEM + 10% FBS
Si-25	25 ± 3	21 ± 3	28 ± 13	−24	−17 ± 4	−3 ± 2	106
Si-85	84 ± 7	71 ± 15	86 ± 16	−42	−21 ± 2	−14 ± 4	37
Si-25-FD	24 ± 2	24 ± 4	35 ± 8	−31	−5 ± 3	−8 ± 2	108
Si-85-FD	85 ± 8	79 ± 18	77 ± 15	−38	−30 ± 2	−7 ± 4	37