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Rapid Commun."],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Nano\u2010 and micromotors are a class of active colloids that can self\u2010propel outperforming Brownian motion. Polymer synthesis or degradation are alternative ways to enzyme\u2010based or externally\u2010driven strategies to induce self\u2010propulsion in particles, but they are often limited due to the reaction conditions. Nature leverages biopolymerization reactions to sustain locomotion either of whole microorganisms or of organelles inside cells. With the aim of integrating natural locomotion strategies into engineered motors, we have begun to explore the propulsion mechanism of the food\u2010borne pathogen\n                    <jats:italic>Listeria monocytogenes<\/jats:italic>\n                    , which expresses the actin\u2010recruiting protein ActA on its surface to harness host cell actin polymerization for rapid intracellular movement. Here, we compare the locomotion of silica particles depending on the ActA immobilization strategy on the motor surface, using either homogeneous coatings, Janus\u2010type coatings, or ActA immobilization within polymer brushes. An up to 5\u2010fold increase in the propulsion of the motors compared to their Brownian motion is observed when Janus motors are considered. The motors orbit around or dock onto larger tracer particles depending on the environmental pH and on whether they are individuals or in clusters. Altogether, these motors illustrate how integration of concepts of the natural and synthetic world can yield unique engineered units.\n                  <\/jats:p>","DOI":"10.1002\/marc.70312","type":"journal-article","created":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T04:28:33Z","timestamp":1779251313000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["On the Assembly of Actin Polymerization\u2010Powered Motors"],"prefix":"10.1002","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2714-0164","authenticated-orcid":false,"given":"Miguel A.","family":"Ramos Docampo","sequence":"first","affiliation":[{"name":"Interdisciplinary Nanoscience Center (iNANO) Aarhus University  Aarhus Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cathrine Abild","family":"Meyer","sequence":"additional","affiliation":[{"name":"Interdisciplinary Nanoscience Center (iNANO) Aarhus University  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