TEM images showing the nucleation and self-assembly of silica into nanocomposites regulated by SF and SS with Different concentrations. (A–D) The concentration of SF was set at (A) 0, (B) 0.1, (C) 1, and (D) 10 mg/mL. (E,F) The concentration of SS was set at (E) 0.1 and (F) 1 mg/mL. During the regulating course, the amounts of APTES and TEOS were 5 μL and 10 μL, respectively.