Artículo
Diblock copolymer bilayers as model for polymersomes: A coarse grain approach
Grillo, Damián Alexis
; Albano, Juan Manuel Ricardo
; Mocskos, Esteban Eduardo
; Facelli, Julio C.; Pickholz, Mónica Andrea
; Ferraro, Marta Beatriz
Fecha de publicación:
06/2017
Editorial:
American Institute of Physics
Revista:
Journal of Chemical Physics
ISSN:
0021-9606
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper presents a new model for polymersomes developed using a poly(ethylene oxide)-poly(butadiene) diblock copolymer bilayer. The model is based on a coarse-grained approach using the MARTINI force field. Since no MARTINI parameters exist for poly(butadiene), we have refined these parameters using quantum mechanical calculations and molecular dynamics simulations. The model has been validated using extensive molecular dynamics simulations in systems with several hundred polymer units and reaching up to 6 μs. These simulations show that the copolymer coarse grain model self-assemble into bilayers and that NPT and NPNγT ensemble runs reproduce key structural and mechanical experimental properties for different copolymer length chains with a similar hydrophilic weight fraction.
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Articulos(CSC)
Articulos de CENTRO DE SIMULACION COMPUTACIONAL P/APLIC. TECNOLOGICAS
Articulos de CENTRO DE SIMULACION COMPUTACIONAL P/APLIC. TECNOLOGICAS
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Grillo, Damián Alexis; Albano, Juan Manuel Ricardo; Mocskos, Esteban Eduardo; Facelli, Julio C.; Pickholz, Mónica Andrea; et al.; Diblock copolymer bilayers as model for polymersomes: A coarse grain approach; American Institute of Physics; Journal of Chemical Physics; 146; 24; 6-2017; 2449041-2449048
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