Extended Data Fig. 2: Morphology of various nanomaterials used in this work.
From: Optofluidic three-dimensional microfabrication and nanofabrication
a, SEM image of a microcube assembled with TiO2 NWs. Inset is the SEM image of TiO2 NWs. b, SEM image of WO3 NWs. c–f, TEM images of diamond nanoparticles (NPs) (c), Al2O3 NWs (d), Au NPs (e) and Ag NPs (f).
