Contact: Ben Stein
bstein@nist.gov
301-975-3097
National Institute of Standards and Technology (NIST)

Videos Extract Mechanical Properties of Liquid-Gel Interfaces

Caption: Microscopic beads embedded in a gel surface were used to trace the motion of a gel forming an interface with a liquid. As the gel/liquid interface was stirred, the beads followed a complicated trajectory (patterns above photos), which the researchers broke down into a range of small, fast movements to large, slow movements in order to determine the gel's underlying mechanical properties. As the strength of the flow is increased (from left to right), the scale of the motion increases.

Credit: NIST

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Related news release: Videos extract mechanical properties of liquid-gel interfaces