Fig. 2: SEM images of all the particles used in this study.
From: Acoustofluidic separation of prolate and spherical micro-objects

a 5 μm PS microspheres with volume (V) = 65.45 μm3. Prolate ellipsoidal PS microparticles fabricated from the 5 μm microspheres with aspect ratio of b 1.2 with V = 64.332 μm3, c 1.5 with V = 64.74 μm3, and d 2 with V = 65.21 μm3. e 4.4 μm PS microspheres with V = 44.602 μm3. Prolate ellipsoidal PS microparticles fabricated from the 4.4 μm microspheres with aspect ratio of f 1.2 with V = 43.092 μm3, g 1.2 and 2, and h 2 with V = 43.59 μm3. i 4 μm PS microspheres with V = 33.51 μm3. j 5.1 \(\times\) 3.4 μm peanut-shaped PS particles with V = 34 μm3. k 6 μm PS microspheres with V = 113 μm3. l 7.7 \(\times\) 5.1 μm peanut-shaped PS particles with V = 117 μm3