Fig. 4: TEM characterization of released nanoparticles.

TEM images of nanoparticles released from a kettle over 150 boil cycles. (a−c) boil 1 and (d−f) boils 150.

TEM images of nanoparticles released from a kettle over 150 boil cycles. (a−c) boil 1 and (d−f) boils 150.