ArticleProceedings of the National Academy of Sciences of the United States of America2021
Programmable droplet manipulation and wetting with soft magnetic carpets.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies.Advanced materials (Deerfield Beach, Fla.) · 2026Review
- Droplet removal by capillary lifting.Communications physics · 2026Article
- Self-Powered Microfluidic System Based on Double-Layer Rotational Triboelectric Nanogenerator.Micromachines · 2025Article
- Present and future of smart functional materials as actuators in microfluidic devices.Lab on a chip · 2025Review
- Impact dynamics of non-ferro liquid droplets under magnetic influence.RSC advances · 2025Article
- Reconfigurable robust microrobot collectives with large force output enabled by gradient magnetic fields.Science advances · 2025Article
- Light-Responsive Materials in Droplet Manipulation for Biochemical Applications.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Magnetic, conductive nanoparticles as building blocks for steerable micropillar-structured anodic biofilms.Biofilm · 2024Article
- Individual and collective manipulation of multifunctional bimodal droplets in three dimensions.Science advances · 2024Article
- Magnetic Janus origami robot for cross-scale droplet omni-manipulation.Nature communications · 2023Article
- Kirigami Makes a Soft Magnetic Sheet Crawl.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Bioinspired magnetic cilia: from materials to applications.Microsystems & nanoengineering · 2023Review
- Janus Charged Droplet Manipulation Mediated by Invisible Charge Walls.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Hydrodynamics of Droplet Sorting in Asymmetric Acute Junctions.Micromachines · 2022Article
- A review on control of droplet motion based on wettability modulation: principles, design strategies, recent progress, and applications.Science and technology of advanced materials · 2022Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ability to regulate interfacial and wetting properties is highly demanded in anti-icing, anti-biofouling, and medical and energy applications. Recent work on liquid-infused systems achieved switching wetting properties, which allow us to turn between slip and pin states. However, patterning the wetting of surfaces in a dynamic fashion still remains a challenge. In this work, we use programmable wetting to activate and propel droplets over large distances. We achieve this with liquid-infused soft magnetic carpets (SMCs) that consist of pillars that are responsive to external magnetic stimuli. Liquid-infused SMCs, which are sticky for a water droplet, become slippery upon application of a magnetic field. Application of a patterned magnetic field results in a patterned wetting on the SMC. A traveling magnetic field wave translates the patterned wetting on the substrate, which allows droplet manipulation. The droplet speed increases with an increased contact angle and with the droplet size, which offers a potential method to sort and separate droplets with respect to their contact angle or size. Furthermore, programmable control of the droplet allows us to conduct reactions by combining droplets loaded with reagents. Such an ability of conducting small-scale reactions on SMCs has the potential to be used for automated analytical testing, diagnostics, and screening, with a potential to reduce the chemical waste.
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Registered trials
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