Figure 7
From: A magnet-actuated biomimetic device for isolating biological entities in microwells

(A) Schematic of forces acting on a magnetic liquid marble (B) Experimental snapshots showing position of the magnet with respect to the magnetic liquid marble on micropillar- and microwell-surfaces. A variation in trigger distance on plain and textured PDMS surfaces is also shown (scale bar – 4 mm). (C) The magnetic flux density as a function of distance away from the NdFeB cylindrical magnet surface. Exact location of the magnetic liquid marble resting on the PDMS surface is also shown.