Figure 3

Physicochemical property of nanosilicate platelets (NS). TEM images showing size and morphology of NS − F (a) and NS + F (d). Cryo-SEM images of NS − F at 100 µg.mL⁻¹ (b) and 1 mg.mL⁻¹ concentration (c). Cryo-SEM images of NS + F at 100 µg.mL⁻¹ (e) and 1 mg.mL⁻¹ concentration (f). Insert table showing the percent composition, particle size, surface area and zeta potential of NS − F and NS + F nanosilicates. Scale bar is 50 nm for (a,d), 200 nm for (b,e) and 300 nm for (c,f).