Physicists have developed a new model that describes how filaments assemble into active foams.
Many fundamental processes of life, and their synthetic counterparts in nanotechnology, are based on the autonomous assembly of individual particles into complex patterns. LMU physicist Professor Erwin Frey investigates the fundamental principles of this self-organization. With his team, he has now developed a theoretical model which explains the formation of patterns such as active foams from a mixture of protein filaments and molecular motors.
The transition from micelles to foams depends on the number of motors and microtubules. When the number of components is low, the particles have a lot of freedom of movement, allowing individual micelles to form."But if the number of components increases, band-like layers emerge and then even more complex structures like foams," explains Frey."These foams have an ordered structure with a mixture of pentagons, hexagons, and heptagons and resemble honeycombs.
Investigators have developed a low-cost, high-throughput device that can reliably generate uniform tumor spheroids. The study describes how to assemble the 'Do-It-Yourself ' device from parts ...
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