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- W2917208163 abstract "Robust and flexible free-standing films made of spin-coated poly(lactic acid) (PLA) and poly(3,4-ethylenedioxythiophene) (PEDOT) nanolayers have been prepared. A steel sheet coated with a sacrificial layer of PEDOT:poly(styrenesulfonate) (PSS) and a spin-coated nanolayer of PLA was used as working electrode for the anodic polymerization of 3,4-ethylenedioxythiophene monomer. The latter was only successfully accomplished when rounded-shape nanoperforations of average diameter 49 ± 14 nm were introduced into PLA layers, which was achieved by combining the phase segregation processes undergone by immiscible PLA:poly(vinyl alcohol) (PVA) mixtures with selective solvent etching to remove PVA domains. Nanoperforations allowed the utilization of the semiconducting PEDOT:PSS sacrificial layer to immobilize the electropolymerized PEDOT chains. Morphological and topographical studies show the templating effect of PEDOT layers. In addition of flexibility and mechanical strength, free-standing 5-layered films present good electrochemical activity, evidencing their potential ability to reversibly exchange ions with the medium. These properties offer important advantages with respect to those of neat PLA and supported PEDOT films, as has been illustrated by cell culture and protein adsorption assays. Cell cultures evidenced the superior behavior of 5-layered films as bioactive platforms for fibroblast and epithelial cells proliferation, while adsorption assays reflected their potential as selective bioadhesive surfaces for protein separation." @default.
- W2917208163 created "2019-03-02" @default.
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- W2917208163 date "2019-05-01" @default.
- W2917208163 modified "2023-09-28" @default.
- W2917208163 title "Perforated polyester nanomebranes as templates of electroactive and robust free-standing films" @default.
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- W2917208163 doi "https://doi.org/10.1016/j.eurpolymj.2019.02.038" @default.
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