Ultrafast reversible self-assembly of living tangled matter
Ultrafast reversible self-assembly of living tangled matter
复制标题
活体缠结物质的超快可逆自组装
DOI:
10.1126/science.ade7759
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发表时间:
2023
期刊:
影响因子:
56.9
通讯作者:
Bhamla, M. Saad
中科院分区:
文献类型:
--
作者:
Patil, Vishal P.;Tuazon, Harry;Kaufman, Emily;Chakrabortty, Tuhin;Qin, David;Dunkel, Jörn;Bhamla, M. Saad
Tangled active filaments are ubiquitous in nature, from chromosomal DNA and cilia carpets to root networks and worm collectives. How activity and elasticity facilitate collective topological transformations in living tangled matter is not well understood. We studied California blackworms (Lumbriculus variegatus), which slowly form tangles in minutes but can untangle in milliseconds. Combining ultrasound imaging, theoretical analysis, and simulations, we developed and validated a mechanistic model that explains how the kinematics of individual active filaments determines their emergent collective topological dynamics. The model reveals that resonantly alternating helical waves enable both tangle formation and ultrafast untangling. By identifying generic dynamical principles of topological self-transformations, our results can provide guidance for designing classes of topologically tunable active materials.
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DOI:
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发表时间:
2020-02
期刊:
arXiv: Soft Condensed Matter
影响因子:
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作者:
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通讯作者:
Vishal P. Patil;Žiga Kos;M. Ravnik;J. Dunkel