A cornstarch-water droplet can behave like a liquid and a solid at the same time, depending on how it is stressed.
High-speed imaging reveals how these “oobleck” drops reshape on impact, highlighting the surprising physics of shear-thickening fluids.
🔗 https://www.nature.com/articles/d41586-026-01109-3
#FluidDynamics #SoftMatter #Rheology #ComplexFluids #physics

Liquid or solid? Oobleck droplets are both
High-speed cameras can observe the strange behaviour of a cornstarch–water mixture.
What looks like a simple bubble can become a delivery system. New materials store therapeutic gases and release them through controlled interfacial dynamics.
🔗 https://www.science.org/doi/10.1126/science.aef9968
#Fluids #Interfaces #SoftMatter #DrugDelivery #Physics
Liquids are usually expected to flow continuously. But under strong extensional stress, viscosity alone can trigger sudden, fracture-like failure.
Could this help control flows in hydraulics, 3D printing, or even blood vessels?
🔗 https://phys.org/news/2026-03-liquids-fracture-solids.html
#FluidMechanics #Rheology #SoftMatter #FracturePhysics #Biofluidics

Liquids can fracture like solids—researchers discover the breaking point
In a development that could shift our basic understanding of fluid mechanics, researchers from Drexel University have reported that, given the right circumstances, it is possible to induce a simple liquid to fracture like a solid object. Recently published in the journal Physical Review Letters, the research shows how viscous liquids can suddenly break if stretched with enough force.
Phys.orgPlant-based milks aren’t simple liquids. Most behave as non-Newtonian fluids, flowing more easily under stress due to tiny amounts of added gums.
A reminder that everyday fluids can hide complex physics.
🔗 https://www.newscientist.com/article/2521037-the-weird-physics-of-plant-based-milks-is-only-just-coming-to-light/
#NonNewtonian #FluidDynamics #SoftMatter #EverydayPhysics #foodscience

The weird physics of plant-based milks is only just coming to light
Experiments on different kinds of milk have revealed that many plant-based milks are non-Newtonian fluids
New ScientistWhat controls the motion of self-propelled particles at interfaces?
Experiments and simulations show how Marangoni forces drive elliptical Janus particles, with dynamics strongly shaped by size and eccentricity.
🔗 https://pubs.rsc.org/en/content/articlelanding/2026/sm/d5sm01270h
#marangoni #ActiveMatter #softmatter #fluiddynamics #janusparticles
Optimizing particle shape for confined microchannels can boost transport efficiency.
Prolate or oblate spheroids outperform spheres under certain conditions, guiding designs in microfluidics and targeted delivery.
🔗 https://pubs.rsc.org/en/content/articlelanding/2026/sm/d6sm00038j
#Microfluidics #particledynamics #softmatter #Colloids #drugdelivery
Tiny droplets, big potential.
Yale scientists studied 5,000 breakups to understand how droplets split under different conditions.
A step forward for microfluidics applications.
🔗 https://phys.org/news/2026-03-precise-droplet.html
#Microfluidics #dropletphysics #softmatter #MicroReactors #drugdelivery

Building a better, more precise droplet
A humble droplet can be an immensely useful tool for a number of fields, from medicine to manufacturing. Controlling the size of the droplet, though, is an important—and very tricky—task. With unprecedented precision, a team of researchers determined how droplets break up into smaller ones, at what size, and under what conditions. The results of this study are published in Soft Matter.
Phys.orgInspired by nature, scientists show that bursting bubbles inside droplets can launch centimetre-scale water drops.
Implications for microscale 3D printing, material deposition, and everyday self-cleaning surfaces.
🔗 https://physicsworld.com/a/a-bursting-bubble-can-make-a-puddle-jump/
#SoftMatter #FluidDynamics #DropletJumping #SurfaceEnergy #Microfluidics

A bursting bubble can make a puddle jump – Physics World
In a breakthrough in droplet physics, researchers find a way to get centimetre-scale water droplets to jump into the air
Physics WorldScientists are creating “animate” droplets that can act, adapt, and respond on their own, blurring the line between living and non-living matter.
Could this inspire new ways to control liquids?
🔗 https://physicsworld.com/a/droplet-scientists-push-the-boundary-between-living-and-non-living-matter/
#softmatter #ActiveMatter #dropletphysics #AutonomousSystems #fluiddynamics

Droplet scientists push the boundary between living and non-living matter – Physics World
Systems governed by chemistry and physics, not biology, can behave in surprisingly lifelike ways, as Giorgio Volpe, Rob Malinowski and Joe Forth explain
Physics WorldHow does a droplet dry when space is confined?
Experiments by B. Sobac and colleagues using interferometry and controlled humidity track the evaporation of binary liquid droplets in a 2D geometry.
Useful for studying droplet evaporation.
🔗 https://journals.aps.org/prfluids/abstract/10.1103/9zdm-drvp
#FluidDynamics #Droplets #Evaporation #SoftMatter #TransportPhenomena