TY  - JOUR
AU  - Abaurrea Velasco, Clara
AU  - Dehghani Ghahnaviyeh, Sepehr
AU  - Nejat Pishkenari, Hossein
AU  - Auth, Thorsten
AU  - Gompper, Gerhard
TI  - Complex self-propelled rings: a minimal model for cell motility
JO  - Soft matter
VL  - 13
IS  - 35
SN  - 1744-6848
CY  - London
PB  - Royal Soc. of Chemistry
M1  - FZJ-2017-06745
SP  - 5865 - 5876
PY  - 2017
AB  - Collective behavior of active matter is observed for self-propelled particles, such as vibrated disks and active Brownian particles, as well as for cytoskeletal filaments in motile cells. Here, a system of quasi two-dimensional penetrable self-propelled rods inside rigid rings is used to construct a complex self-propelled particle. The rods interact sterically with each other and with a stationary or mobile ring via a separation-shifted Lennard-Jones potential. They either have a sliding attachment to the inside of the ring at one of their ends, or can move freely within the ring confinement. We study the inner structure and dynamics of the mobile self-propelled rings. We find that these complex particles cannot only be characterized as active Brownian particles, but can also exhibit cell-like motility: random walks, persistent motion, circling, and run-and-circle motion.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000411443900007
C6  - pmid:28766641
DO  - DOI:10.1039/C7SM00439G
UR  - https://juser.fz-juelich.de/record/837997
ER  -