Fig. 1: Engineering magnetically responsive PDMS pillars.
From: Magnetically driven active topography for long-term biofilm control
a Schematic of the steps for fabricating active surface topographies. b Settlement of MNPs through silicone elastomer mixture (base: curing agent = 10:1) driven by a 1 T magnet. The images show the original MNPs in a PDMS mixture and the settling of MNPs with a magnet. Each condition was tested with three replicates (error bar = standard deviation; n = 3). Source data of Fig. 1a, b are provided in the Source Data file. c Schematic of pillar bending in response to an external electromagnetic field. The location of MNPs in the pillar tips is indicated in the schematic, which was verified by imaging pillars loaded with fluorescently labeled MNPs (green signals shown in Fig. 1c). The profile of the pillar is highlighted with white dotted lines.
