Fig. 4: Wide compatibility with versatile micromaterials/nanomaterials.
From: Optofluidic three-dimensional microfabrication and nanofabrication
a–c, 3D model (a) and SEM images (b,c) of a micro-gourd superstructure assembled with 1-μm SiO2 particles. d–f, 3D model (d) and SEM images (e,f) of a hexagon-shaped micro-superstructure assembled with 600-nm SiO2 particles. g–i, 3D model (g) and SEM images (h,i) of a microsphere co-assembled with 1-μm and 600-nm SiO2 particles. j–l, Model (j) and SEM images (k,l) of superstructures of the letters ‘P’ (assembled with 1-μm SiO2 particles) and ‘I’ (assembled with 600-nm SiO2 particles). m,n, 3D model (m) and SEM image (n) of a TiO2 nanoparticle (NP)-assembled screw-like microstructure. o, TEM image of TiO2 NPs. p,q, 3D model (p) and SEM images (q (i), (ii)) of the letter ‘E’ composed of Fe3O4 NPs. r, TEM image of Fe3O4 NPs. s–z, Model (s), SEM image (t) and EDS mapping (u–z) of a microcube assembled with various materials, including SiO2 (t), TiO2 NWs (u), WO3 NWs (v), diamond NPs (w), Al2O3 NWs (x), Fe3O4 NPs (y) and Ag NPs (z). The high-resolution surface morphology of the microstructures assembled with different nanomaterials, along with the corresponding component nanomaterials, can be found in Extended Data Figs. 1 and 2. Scale bars, 10 μm (b,e,h,k,t); 4 μm (c,f,i,l); 5 μm (u–z); 2 μm (n,q (i)); 800 nm (q (ii)); 200 nm (o); 80 nm (r).
