ArticleNature communications2022
Structure induced laminar vortices control anomalous dispersion in porous media.
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 10 papers.
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Who cites it
10 citing papers in PubMed.
- Diffusiophoretic transport of colloids in porous media.Science advances · 2026Article
- A Machine Learning-Driven Pore-Scale Network Model Coupling Reaction Kinetics and Interparticle Transport for Catalytic Process Design.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Electrokinetic nanoparticle transport in an interconnected porous environment: Decoupling cavity escape and directional bias.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Strain-Driven Dewetting and Interdiffusion in SiGe Thin Films on SOI for CMOS-Compatible Nanostructures.Nanomaterials (Basel, Switzerland) · 2025Article
- Soil-mimicking microfluidic devices reveal restricted flagellar motility of Bradyrhizobium diazoefficiens under microconfinement.Communications biology · 2025Article
- Inertia-induced mixing and reaction maximization in laminar porous media flows.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- An integrated experimental-modeling approach to identify key processes for carbon mineralization in fractured mafic and ultramafic rocks.PNAS nexus · 2024Article
- Integrated Framework to Model Microstructure Evolution and Decipher the Microstructure-Property Relationship in Polymeric Porous Materials.ACS applied materials & interfaces · 2024Article
- Biporous silica nanostructure-induced nanovortex in microfluidics for nucleic acid enrichment, isolation, and PCR-free detection.Nature communications · 2024Article
- Spatial structure, chemotaxis and quorum sensing shape bacterial biomass accumulation in complex porous media.Nature communications · 2024Article
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Authors and funding
6 authors.
Funding
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Abstract
Natural porous systems, such as soil, membranes, and biological tissues comprise disordered structures characterized by dead-end pores connected to a network of percolating channels. The release and dispersion of particles, solutes, and microorganisms from such features is key for a broad range of environmental and medical applications including soil remediation, filtration and drug delivery. Yet, owing to the stagnant and opaque nature of these disordered systems, the role of microscopic structure and flow on the dispersion of particles and solutes remains poorly understood. Here, we use a microfluidic model system that features a pore structure characterized by distributed dead-ends to determine how particles are transported, retained and dispersed. We observe strong tailing of arrival time distributions at the outlet of the medium characterized by power-law decay with an exponent of 2/3. Using numerical simulations and an analytical model, we link this behavior to particles initially located within dead-end pores, and explain the tailing exponent with a hopping across and rolling along the streamlines of vortices within dead-end pores. We quantify such anomalous dispersal by a stochastic model that predicts the full evolution of arrival times. Our results demonstrate how microscopic flow structures can impact macroscopic particle transport.
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