000824888 001__ 824888 000824888 005__ 20240610115656.0 000824888 0247_ $$2doi$$a10.3390/polym8080304 000824888 0247_ $$2Handle$$a2128/13178 000824888 0247_ $$2WOS$$aWOS:000384520900019 000824888 037__ $$aFZJ-2016-07390 000824888 082__ $$a540 000824888 1001_ $$0P:(DE-Juel1)164141$$aEisenstecken, Thomas$$b0 000824888 245__ $$aConformational Properties of Active Semiflexible Polymers 000824888 260__ $$aBasel$$bMDPI$$c2016 000824888 3367_ $$2DRIVER$$aarticle 000824888 3367_ $$2DataCite$$aOutput Types/Journal article 000824888 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1481554519_18986 000824888 3367_ $$2BibTeX$$aARTICLE 000824888 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000824888 3367_ $$00$$2EndNote$$aJournal Article 000824888 520__ $$aThe conformational properties of flexible and semiflexible polymers exposed to active noise are studied theoretically. The noise may originate from the interaction of the polymer with surrounding active (Brownian) particles or from the inherent motion of the polymer itself, which may be composed of active Brownian particles. In the latter case, the respective monomers are independently propelled in directions changing diffusively. For the description of the polymer, we adopt the continuous Gaussian semiflexible polymer model. Specifically, the finite polymer extensibility is taken into account, which turns out to be essential for the polymer conformations. Our analytical calculations predict a strong dependence of the relaxation times on the activity. In particular, semiflexible polymers exhibit a crossover from a bending elasticity-dominated dynamics to the flexible polymer dynamics with increasing activity. This leads to a significant activity-induced polymer shrinkage over a large range of self-propulsion velocities. For large activities, the polymers swell and their extension becomes comparable to the contour length. 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