Graphene oxide-silica (GOS) nanohybrids were quickly synthesized in water.
Polyamide 6 (PA6)-GOS nanocomposites were prepared in the melt.
The entire process is eco-friendly and requires less than 2 h.
Lasagna-like self-assembly of GOS avoids crumpling and re-stacking phenomena.
GOS improved stiffening, strengthening and toughening of PA6 (up to +210%)