Hydrogels that can respond to multiple external stimuli are typically prepared as a single or interpenetrated polymer network material. Now, water-in-oil droplet networks have been used to precisely pattern different stimuli-responsive materials into well-ordered, continuous hydrogel structures.
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Delawder, A.O., Barnes, J.C. Precise patterning driven by droplets. Nat. Chem. 12, 328–330 (2020). https://doi.org/10.1038/s41557-020-0449-9
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DOI: https://doi.org/10.1038/s41557-020-0449-9
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Sorting Gold and Sand (Silica) Using Atomic Force Microscope-Based Dielectrophoresis
Nano-Micro Letters (2022)