Worm blobs as entangled living polymers: from topological active matter to flexible soft robot collectives

A Deblais, KR Prathyusha, R Sinaasappel, H Tuazon… - Soft Matter, 2023 - pubs.rsc.org
Recently, the study of long, slender living worms has gained attention due to their unique
ability to form highly entangled physical structures, exhibiting emergent behaviors. These …

Additive manufacturing of highly entangled polymer networks

AP Dhand, MD Davidson, HM Zlotnick, TJ Kolibaba… - Science, 2024 - science.org
Incorporation of polymer chain entanglements within a single network can synergistically
improve stiffness and toughness, yet attaining such dense entanglements through vat …

Collective self-caging of active filaments in virtual confinement

M Kurjahn, L Abbaspour, F Papenfuß, P Bittihn… - Nature …, 2024 - nature.com
Motility coupled to responsive behavior is essential for many microorganisms to seek and
establish appropriate habitats. One of the simplest possible responses, reversing the …

Self-Organized States from Solutions of Active Ring Polymers in Bulk and under Confinement

JP Miranda, E Locatelli, C Valeriani - Journal of Chemical Theory …, 2023 - ACS Publications
In the present work, we study, by means of numerical simulations, the structural and
dynamical behavior of a suspension of active ring polymers in bulk and under lateral …

Material assembly from collective action of shape-changing polymers

MK Abdelrahman, RJ Wagner, MS Kalairaj, M Zadan… - Nature Materials, 2024 - nature.com
Some animals form transient, responsive and solid-like ensembles through dynamic
structural interactions. These ensembles demonstrate emergent responses such as …

Conformation and dynamics of partially active linear polymers

M Vatin, S Kundu, E Locatelli - Soft Matter, 2024 - pubs.rsc.org
We perform numerical simulations of isolated, partially active polymers, driven out-of-
equilibrium by a fraction of their monomers. We show that, if the active beads are all …

Universal time and length scales of polar active polymer melts

MA Ubertini, E Locatelli, A Rosa - ACS Macro Letters, 2024 - ACS Publications
We present an in-depth multiscale analysis of the conformations and dynamics of polar
active polymers, comparing very dilute and very dense conditions. We unveil characteristic …

Bio-inspired drug delivery systems: A new attempt from bioinspiration to biomedical applications

L Ming, H Wu, Q Fan, Z Dong, J Huang, Z Xiao… - International Journal of …, 2024 - Elsevier
Natural organisms have evolved sophisticated and multiscale hierarchical structures over
time to enable survival. Currently, bionic design is revolutionizing drug delivery systems …

[HTML][HTML] De novo evolution of macroscopic multicellularity

GO Bozdag, SA Zamani-Dahaj, TC Day, PC Kahn… - Nature, 2023 - nature.com
While early multicellular lineages necessarily started out as relatively simple groups of cells,
little is known about how they became Darwinian entities capable of sustained multicellular …

Morphological Entanglement in Living Systems

TC Day, SA Zamani-Dahaj, GO Bozdag, AJ Burnetti… - Physical Review X, 2024 - APS
Many organisms exhibit branching morphologies that twist around each other and become
entangled. Entanglement occurs when different objects interlock with each other, creating …