Results 1 to 10 of about 3,171,497 (127)
npj Microgravity, 2022 In the last 20 years, active matter has been a highly dynamic field of research, bridging fundamental aspects of non-equilibrium thermodynamics with applications to biology, robotics, and nano-medicine.
Giorgio Volpe +6 more
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Nano/Micromotors in Active Matter [PDF]
Micromachines, 2022 Nano/micromotors (NMMs) are tiny objects capable of converting energy into mechanical motion. Recently, a wealth of active matter including synthetic colloids, cytoskeletons, bacteria, and cells have been used to construct NMMs. The self-sustained motion
Chenglin Lv, Yuguang Yang, Bo Li
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A colloidal viewpoint on the sausage catastrophe and the finite sphere packing problem
Nature Communications, 2023 It is commonly believed that the most efficient way to pack a finite number of equal-sized spheres is by arranging them tightly in a cluster. However, mathematicians have conjectured that a linear arrangement may actually result in the densest packing ...
Susana Marín-Aguilar +5 more
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Control cell migration by engineering integrin ligand assembly
Nature Communications, 2022 Engineering peptide assembly that controls integrin ligand presentation on the molecular level possesses by far the highest ligand density, expanding the perspective of ligand-density-dependent modulation.
Xunwu Hu +12 more
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Oxygen Generation Using Catalytic Nano/Micromotors
Micromachines, 2021 Gaseous oxygen plays a vital role in driving the metabolism of living organisms and has multiple agricultural, medical, and technological applications. Different methods have been discovered to produce oxygen, including plants, oxygen concentrators and ...
Sumayyah Naeem +13 more
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Active nematic multipoles: Flow responses and the dynamics of defects and colloids
Frontiers in Physics, 2023 We introduce a general description of localised distortions in active nematics using the framework of active nematic multipoles. We give the Stokesian flows for arbitrary multipoles in terms of differentiation of a fundamental flow response and describe ...
Alexander J. H. Houston +3 more
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RNA polymerase II clusters form in line with surface condensation on regulatory chromatin
Molecular Systems Biology, 2021 It is essential for cells to control which genes are transcribed into RNA. In eukaryotes, two major control points are recruitment of RNA polymerase II (Pol II) into a paused state, and subsequent pause release toward transcription.
Agnieszka Pancholi +10 more
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Frontiers in Physics, 2022 Recent studies have shown that packings of cells, both eukaryotic cellular tissues and growing or swarming bacterial colonies, can often be understood as active nematic fluids.
Fabian Jan Schwarzendahl +3 more
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Frontiers in Robotics and AI, 2021 Phase-change material–elastomer composite (PCMEC) actuators are composed of a soft elastomer matrix embedding a phase-change fluid, typically ethanol, in microbubbles. When increasing the temperature, the phase change in each bubble induces a macroscopic
Gilles Decroly +11 more
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Anomalous cell sorting behavior in mixed monolayers discloses hidden system complexities
New Journal of Physics, 2021 In tissue development, wound healing and aberrant cancer progression cell–cell interactions drive mixing and segregation of cellular composites. However, the exact nature of these interactions is unsettled.
Paul Heine +4 more
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