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Title:	Free-standing faradaic motors based on biocompatible nanoperforated poly(lactic acid) layers and electropolymerized poly(3,4-ethylenedioxythiophene)
Author:	Molina García, Brenda Guadalupe; Cuesta, Sergi; Besharatloo, H.; Roa Rovira, Joan Josep; Armelín Diggroc, Elaine Aparecida; Alemán Llansó, Carlos
Other authors:	Universitat Politècnica de Catalunya. Doctorat en Polímers i Biopolímers; Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials; Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. IMEM-BRT- Innovation in Materials and Molecular Engineering - Biomaterials for Regenerative Therapies; Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
Abstract:	The electro-chemo-mechanical response of robust and flexible free-standing films made of three nanoperforated poly(lactic acid) (pPLA) layers separated by two anodically polymerized poly(3,4-ethylenedioxythiophene) (PEDOT) layers has been demonstrated. The mechanical and electrochemical properties of these films, which are provided by pPLA and PEDOT, respectively, have been studied by nanoindentation, cyclic voltammetry, and galvanostatic charge–discharge assays. The unprecedented combination of properties obtained for this system is appropriated for its utilization as a Faradaic motor, also named artificial muscle. Application of square potential waves has shown important bending movements in the films, which can be repeated for more than 500 cycles without damaging its mechanical integrity. Furthermore, the actuator is able to push a huge amount of mass, as it has been proved by increasing the mass of the passive pPLA up to 328% while keeping the mass of electroactive PEDOT unaltered.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria química -Electrochemistry -Conducting polymers -Actuator -Artificial muscle -Conducting polymer -Nanoindentation -Electroquímica -Polímers conductors
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Submitted version Article
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