Universidad Complutense de Madrid
E-Prints Complutense

Globulelike Conformation and Enhanced Diffusion of Active Polymers



Último año

Bianco, Valentino y Locatelli, Emanuele y Malgaretti, Paolo (2018) Globulelike Conformation and Enhanced Diffusion of Active Polymers. Physical Review Letters, 121 (21). p. 217802. ISSN 1079-7114; 0031-9007

Vista previa

URL Oficial: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.217802


We study the dynamics and conformation of polymers composed by active monomers. By means of Brownian dynamics simulations we show that, when the direction of the self-propulsion of each monomer is aligned with the backbone, the polymer undergoes a coil-to-globulelike transition, highlighted by a marked change of the scaling exponent of the gyration radius. Concurrently, the diffusion coefficient of the center of mass of the polymer becomes essentially independent of the polymer size for sufficiently long polymers or large magnitudes of the self-propulsion. These effects are reduced when the self-propulsion of the monomers is not bound to be tangent to the backbone of the polymer. Our results, rationalized by a minimal stochastic model, open new routes for activity-controlled polymers and, possibly, for a new generation of polymer-based drug carriers.

Tipo de documento:Artículo
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Química física
Ciencias > Química > Física
Ciencias > Química > Informática
Código ID:50446
Depositado:18 Dic 2018 10:05
Última Modificación:19 Dic 2018 08:57

Descargas en el último año

Sólo personal del repositorio: página de control del artículo