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Hydrogen bonding and shear jamming in cornstarch-diol suspensions
Hydrogen bonding and shear jamming in cornstarch-diol suspensions
Jaeger Lab; 2025-present
Measuring the rheology of dense suspensions of cornstarch in diol solvents (two terminal hydroxyl groups with carbon chain in between)
Examining the effects of varying diol solvent on shear thickening and shear jamming effects
Dense suspensions as trainable rheological metafluids
Dense suspensions as trainable rheological metafluids
Jaeger Lab; 2024-2025
Introduced novel dual-shear-thickening chemistry using chemical (dynamic bond) and physical friction between particles of fumed silica
Different kinds of inter-particle friction are triggered in different stress regimes
Investigated the potential for storing “memories" in the suspension through a shear training protocol
Published in PNAS: https://www.pnas.org/doi/10.1073/pnas.2509525122
supplemental materials video.mp4Shear thickening fluids in disordered elastic foams
Shear thickening fluids in disordered elastic foams
Jaeger Lab; 2021-2024
Studied the effect of enhanced shear thickening and energy dissipation in polyurethane foams filled with a strongly shear thickening suspension
Measured the effect of the foam on the fluid using compression testing (Instron, Zwick-Roell), and the effect of the fluid on the foam through video analysis with particle image velocimetry
Concluded that the presence of a dynamically deforming solid matrix shears the interstitial suspension at every pore, resulting in a gradient of viscosity increases in the composite material
Published in Soft Matter: https://doi.org/10.1039/D4SM01144A
Mycelium composites
Mycelium composites
Jaeger Lab; 2024-present
Investigating properties of composite materials made using the root system of fungi, aka. “mycelium"
Inspired by the likes of David Benjamin and Ecovative
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