Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Text
  • Supplementary Calculations
  • Supplementary Material Data
  • Supplementary Equations
  • fig. S1. Synthesis of nanostructured Janus bilayer by sequential electrospinning.
  • fig. S2. SA analysis of the superhydrophobic layers.
  • fig. S3. Morphological characterization (SEM) of the supporting and sacrificial layers.
  • fig. S4. Hemiwicking superhydrophilic nature of the PCL layer.
  • fig. S5. Separation of the Janus bilayer from the PVP protective layer.
  • fig. S6. Static self-assembly of Janus bilayers.
  • fig. S7. Janus bilayer and PCL monolayer response on hydrophilic (paper) substrates.
  • fig. S8. Qualitative wetting characterization of 2- and 3-mm strips of Janus bilayer and PCL monolayer on a hydrophilic paperboard.
  • fig. S9. Enlarged images of initial Janus bilayer folding.
  • fig. S10. Representative thermodynamic states of the Janus bilayer during self-assembly.
  • fig. S11. Response of the PVC side of the Janus bilayer to water.
  • fig. S12. Mimosa Origami of a 2-mm strip of Janus bilayer and PCL monolayer on the PDMS-PS substrates.
  • fig. S13. Decreasing stimulus propagation rate for a 2-mm-wide strip and a stimulus droplet size of 40 μl.
  • table. S1. Width-to-diameter ratios of Mimosa Origami–assembled microchannels.
  • table. S2. Material properties of Janus bilayers.
  • Legends for movies S1 to S9
  • References (3744)

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.mp4 format). Static self-assembling properties of circular-shaped Janus bilayer demonstrating artificial tropism in response to a microdroplet.
  • movie S2 (.mp4 format). Mimosa Origami assembly of the Janus bilayer strips on a superhydrophobic PS-PDMS substrate.
  • movie S3 (.mp4 format). Mimosa Origami assembly of the Janus bilayer strips performing double right-angle turns on a superhydrophobic PS-PDMS substrate.
  • movie S4 (.mp4 format). Mimosa Origami assembly of the Janus bilayer strips performing longer and tighter double right-angle turns on a superhydrophobic PS-PDMS substrate.
  • movie S5 (.mp4 format). Mimosa Origami assembly of the Janus bilayer strips on a superhydrophobic PS-PDMS substrate.
  • movie S6 (.mp4 format). Modular microfluidics: Janus-based Mimosa Origami strips with double-ended bulbs on a superhydrophobic PS-PDMS substrate showing in-channel droplet mixing.
  • movie S7 (.mp4 format). Modular microfluidics: Janus-based Mimosa Origami strips with double-ended bulbs, with a central bulb on a superhydrophobic PS-PDMS substrate, showing in-bulb droplet mixing.
  • movie S8 (.mp4 format). Modular microfluidics: Janus-based Mimosa Origami strips at a T-junction, showcasing double-ended split for potential in multichannel capabilities.
  • movie S9 (.mp4 format). Cyclic insertion and removal of water from an as-assembled microfluidics channel, showcasing suitability toward pump-aided microfluidic designs.

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