Fig. 2.

Effect of solvent condition and cross-linker on raspberry-colloid synthesis. TEM images of colloids synthesised in a pure water, b a 90/10 v/v, and c in a 70/30 v/v water/ethanol mixture, respectively, using in all three cases the same composition of AM, St and the cross-linker DVB used for ideal raspberries. The average hydrodynamic diameter of the particles determined by dynamic light scattering (DLS) were 300, 245 and 330 nm, respectively. d TEM image of particles synthesised using the ideal 80/20 v/v water/ethanol mixture but omitting DVB. e, f Colloids synthesised in the same 80/20 v/v mixture but using only St and DVB (e) and St, DVB plus half the required amount of AM (f), respectively