All articles tagged with #active matter
Researchers show human sperm and algae like Chlamydomonas propel through viscous fluids by internal energy creating traveling waves via odd elasticity, a non-reciprocal response that can overcome the scallop theorem; the odd elastohydrodynamics framework separates internal flagellar forces from external drag and could inspire bio‑inspired micro‑robots.
Physicists at the Georgia Institute of Technology have developed a new model of active matter, focusing on the motion of microtubules, which are rod-like objects found in cells. By using a data-driven approach, they discovered that the dominant physical effects controlling the interaction between microtubules and the surrounding fluid are different from what was previously assumed. The study provides insights into the relationships between the orientation and motion of microtubules on a macroscopic scale and helps explain previously unexplained experimental results. The researchers emphasize the importance of data-driven methods in challenging traditional assumptions and advancing understanding in the field of active matter.
Researchers from The University of Hong Kong have developed a new photochromic colloidal swarm inspired by the color-changing ability of cephalopods. The team created a wavelength-selective intelligent colloid system using microbeads that can adapt to different light settings, resulting in programmable color changes. Unlike existing materials, this new system rearranges existing pigments rather than generating new ones, making it more reliable and versatile. The findings have potential applications in electronic ink, displays, and active optical camouflage, representing a major breakthrough in the field of active matter.