ArticleNature communications2022
From radial to unidirectional water pumping in zeta-potential modulated Nafion nanostructures.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Technology Roadmap of Micro/Nanorobots.ACS nano · 2025Review
- Application of Micro/Nanomotors in Environmental Remediation: A Review.Micromachines · 2024Review
- Manipulation of artificial and living small objects by light driven diffusioosmotic flow.Scientific reports · 2024Article
- Dynamic Adhesive Behavior and Biofilm Formation ofMaterials (Basel, Switzerland) · 2024Article
- Harnessing Solar-Salinity Synergy with Porphyrin-Based Ionic Covalent-Organic-Framework Membranes for Enhanced Ionic Power Generation.Chem & bio engineering · 2024Article
- An Efficient Ambient-Moisture-Driven Wearable Electrical Power Generator.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Bioresource Upgrade for Sustainable Energy, Environment, and Biomedicine.Nano-micro letters · 2023Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chemically propelled micropumps are promising wireless systems to autonomously drive fluid flows for many applications. However, many of these systems are activated by nocuous chemical fuels, cannot operate at high salt concentrations, or have difficulty for controlling flow directionality. In this work we report on a self-driven polymer micropump fueled by salt which can trigger both radial and unidirectional fluid flows. The micropump is based on the cation-exchanger Nafion, which produces chemical gradients and local electric fields capable to trigger interfacial electroosmotic flows. Unidirectional pumping is predicted by simulations and achieved experimentally by nanostructuring Nafion into microarrays with a fine tune modulation of surrounding surface zeta potentials. Nafion micropumps work in a wide range of salt concentrations, are reusable, and can be fueled by different salt cations. We demonstrate that they work with the common water-contaminant cadmium, using the own capture of this ion as fuel to drive fluid pumping. Thus, this system has potential for efficient and fast water purification strategies for environmental remediation. Unidirectional Nafion pumps also hold promise for effective analyte delivery or preconcentration for (bio)sensing assays.
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Registered trials
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