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. Author manuscript; available in PMC: 2016 Sep 22.
Published in final edited form as: ACS Nano. 2015 Jul 29;9(9):9357–9372. doi: 10.1021/acsnano.5b03443

Table 1.

Hydrodynamic size and zeta potential of fumed silica, calcined fumed silica and rehydrated fumed silica.

Hydrodynamic Size (nm) Zeta Potential (mV)
Water PBS&0.6 mg/mL BSA&0.01 mg/mL DPPC RPMI 1640&10% Serum Water PBS&0.6 mg/mL BSA&0.01 mg/mL DPPC RPMI 1640&10% Serum
Fumed Silica 229.0±5.9 262.4±6.4 195.2±8.1 −37.0±1.3 −10.5±1.4 −6.7±0.5
Calcined Fumed Silica 232.3±5.71 290.1±11.3 235.2±8.0* −12.4±1.7# −3.7±18.2 −3.4±13.8
Rehydrated Fumed Silica 236.7±17.7 267.3±14.9 193.9±10.6 −35.6±1.6 −15.5±3.2 −7.1±0.7
*

p<0.05 compared to size of non-doped fumed silica in RPMI 1640 &10% Serum;

#

p<0.05 compared to zeta potential of non-doped fumed silica in water.