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. 2018 Feb 2;3(2):1425–1436. doi: 10.1021/acsomega.7b01862

Figure 4.

Figure 4

(A) Polymer fiber with ordered microparticles at 1×, which was extruded as a threadlike structure. The scale bar is 2 mm. (B) Ordered PMMA microparticles embedded in the polymer fiber at 10×. The scale bar is 250 μm. (C) A monolayer of ordered microparticles assembled in the polymer at 40×. The scale bar is 50 μm. The PMMA particles form a monolayer of ordered structures on the resin surface (D) due to acoustic assembly and not due to particle concentration, which is demonstrated by sample rotation. On rotation, the particle layer gradually disappears (E, F) and no particles are visible on the opposite face of the sample (G). The scale bar for figures (D)–(G) is 500 μm.