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Tag Archives: Soft matter
Disordered Systems Mimic Genetic Evolution
A bacterial genome’s evolution under changing drug concentrations displays effects of memory formation and mimics how disordered solids respond to external forces. Continue reading
Glassy Behavior Depends on Dimension
The number of excess vibrational modes in glasses scales differently in two dimensions than it does in three. Continue reading
Simple Additives Make Polar Fluids More Polar
The strong polar nature of bonded molecular pairs called zwitterions boosts the dielectric constants of polar fluids. Continue reading
Analyzing the Sharkskin Instability
The stretching and recoiling of polymer chains leads to the characteristic ridge pattern as a soft material exits a narrow nozzle. Continue reading
Shape-Shifting Proteins Follow Diffusion Rules
How quickly a protein diffuses in a liquid depends directly on its radius, which changes as the protein’s conformation fluctuates. Continue reading
At-Home Experiment Exposes Gel Cracks
Kept out of the lab by COVID-19, an undergraduate student has performed experiments in his living room, revealing a mechanism for fracture elongation in soft materials. Continue reading
Active Particles Map to Passive Random Walks
Researchers make systems of self-propelled particles produce the same large-scale dynamics as passive-particle systems. Continue reading
Unjammed Emulsions Collapse to Liquids
An emulsion’s rigidity disappears when the droplets’ random thermal motion overcomes the confining pressure that binds them. Continue reading
Some Granular Columns Weigh Too Much
Particles packed inside a cylinder can experience a downward force from the walls, resulting in an apparent weight increase. Continue reading
Ants know the secret to avoiding traffic jams
In a confined environment, ants divide labor to optimize nest excavation. Continue reading
Rachel Berkowitz 