ArticleProceedings of the National Academy of Sciences of the United States of America2020
Formation of stable aggregates by fluid-assembled solid bridges.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Lunar Regolith Improvement by Inducing Interparticle Adhesion with Capillary Forces.Materials (Basel, Switzerland) · 2025Article
- Soft matter mechanics of baseball's Rubbing Mud.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Ambient-densified and polymer-free transparent wood film for smart food packaging window.iScience · 2023Article
- Arctic soil patterns analogous to fluid instabilities.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Guided Healing of Damaged Microelectrodes via Electrokinetic Assembly of Conductive Carbon Nanotube Bridges.Micromachines · 2021Article
- Avian mud nest architecture by self-secreted saliva.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Moisture alone is sufficient to impart strength but not weathering resistance to termite mound soil.Royal Society open science · 2020Article
- Review of Microfluidic Devices and Imaging Techniques for Fluid Flow Study in Porous Geomaterials.Sensors (Basel, Switzerland) · 2020Review
- Step-Wise Deposition Process for Dielectrophoretic Formation of Conductive 50-Micron-Long Carbon Nanotube Bridges.Micromachines · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When a colloidal suspension is dried, capillary pressure may overwhelm repulsive electrostatic forces, assembling aggregates that are out of thermal equilibrium. This poorly understood process confers cohesive strength to many geological and industrial materials. Here we observe evaporation-driven aggregation of natural and synthesized particulates, probe their stability under rewetting, and measure bonding strength using an atomic force microscope. Cohesion arises at a common length scale (∼5 μm), where interparticle attractive forces exceed particle weight. In polydisperse mixtures, smaller particles condense within shrinking capillary bridges to build stabilizing "solid bridges" among larger grains. This dynamic repeats across scales, forming remarkably strong, hierarchical clusters, whose cohesion derives from grain size rather than mineralogy. These results may help toward understanding the strength and erodibility of natural soils, and other polydisperse particulates that experience transient hydrodynamic forces.
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Registered trials
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