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Physico-chemical characterization of SiO2 particles. (a) Size distribution of SiO2 particles in water; (b) hydrodynamic diameter, polydispersity index and zeta potential for SiO2 particles dispersed in water; (c) TEM image of E551; (d) TEM image of Fumed silica; and, (e) TEM image of LS30.
