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@ARTICLE{Iyer:1008689,
      author       = {Iyer, Priyanka and Gompper, Gerhard and Fedosov, Dmitry A.},
      title        = {{D}ynamic shapes of floppy vesicles enclosing active
                      {B}rownian particles with membrane adhesion},
      journal      = {Soft matter},
      volume       = {19},
      number       = {19},
      issn         = {1744-683X},
      address      = {London},
      publisher    = {Royal Soc. of Chemistry},
      reportid     = {FZJ-2023-02480},
      pages        = {3436 - 3449},
      year         = {2023},
      abstract     = {Recent advances in micro- and nano-technologies allow the
                      construction of complex active systems from biological and
                      synthetic materials. An interesting example is active
                      vesicles, which consist of a membrane enclosing
                      self-propelled particles, and exhibit several features
                      resembling biological cells. We investigate numerically the
                      behavior of active vesicles, where the enclosed
                      self-propelled particles can adhere to the membrane. A
                      vesicle is represented by a dynamically triangulated
                      membrane, while the adhesive active particles are modelled
                      as active Brownian particles (ABPs) that interact with the
                      membrane via the Lennard-Jones potential. Phase diagrams of
                      dynamic vesicle shapes as a function of ABP activity and
                      particle volume fraction inside the vesicle are constructed
                      for different strengths of adhesive interactions. At low ABP
                      activity, adhesive interactions dominate over the propulsion
                      forces, such that the vesicle attains near static
                      configurations, with protrusions of membrane-wrapped ABPs
                      having ring-like and sheet-like structures. At moderate
                      particle densities and strong enough activities, active
                      vesicles show dynamic highly-branched tethers filled with
                      string-like arrangements of ABPs, which do not occur in the
                      absence of particle adhesion to the membrane. At large
                      volume fractions of ABPs, vesicles fluctuate for moderate
                      particle activities, and elongate and finally split into two
                      vesicles for large ABP propulsion strengths. We also analyze
                      membrane tension, active fluctuations, and ABP
                      characteristics (e.g., mobility, clustering), and compare
                      them to the case of active vesicles with non-adhesive ABPs.
                      The adhesion of ABPs to the membrane significantly alters
                      the behavior of active vesicles, and provides an additional
                      parameter for controlling their behavior.},
      cin          = {IBI-5 / IAS-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IBI-5-20200312 / I:(DE-Juel1)IAS-2-20090406},
      pnm          = {5243 - Information Processing in Distributed Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5243},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37132446},
      UT           = {WOS:000979621300001},
      doi          = {10.1039/D3SM00004D},
      url          = {https://juser.fz-juelich.de/record/1008689},
}