Show simple item record

dc.contributor.authorBabeli Aguilera, Ismael
dc.contributor.authorRuano Torres, Guillem
dc.contributor.authorCasanovas Salas, Jordi
dc.contributor.authorGinebra Molins, Maria Pau
dc.contributor.authorGarcía Torres, José Manuel
dc.contributor.authorAlemán Llansó, Carlos
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Polímers i Biopolímers
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2021-02-26T11:05:31Z
dc.date.available2021-05-13T00:27:41Z
dc.date.issued2020-07-07
dc.identifier.citationBabeli, I. [et al.]. Conductive, self-healable and reusable poly(3,4-ethylenedioxythiophene)-based hydrogels for highly sensitive pressure arrays. "Journal of materials chemistry C", 7 Juliol 2020, vol. 8, núm. 25, p. 8654-8667.
dc.identifier.issn2050-7526
dc.identifier.urihttp://hdl.handle.net/2117/340563
dc.description.abstractAlthough challenging, the preparation of pure conducting polymer (CP) hydrogels as conductive flexible networks for developing high-performance functional platforms is an outstanding alternative to conventional approaches, as for example those based on the cross-linking of insulating polymers with CP segments and the simple utilization of CPs as fillers of insulating hydrogel networks. In this work, we propose the employment of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) to prepare conductive hydrogels by partially replacing the PSS dopant by alginate (Alg) chains, which is energetically favoured. The capacity of Alg chains to be electrostatically cross-linked by Ca2+ ions has allowed us to obtain hydrogels with good electrical percolation response and mechanical properties. Hydrogels were prepared in a very simple one-step process by adding CaCl2 to different mixtures of PEDOT : PSS and alginic acid (1 : 3, 1 : 1 and 3 : 1). After structural, chemical and physical characterization, the 1 : 3 PEDOT/Alg hydrogel was moulded to fabricate stretchable touch-pressure sensor arrays, which exhibited fast response and good spatial resolution of the pressure distribution. In addition, the PEDOT/Alg hydrogel is self-healable which allowed us to prepare reusable pressure sensors (i.e. devices that can be reprocessed to be used in their original application) thanks to the reversibility of the noncovalent Ca2+ crosslinks. Reusable devices are different to reclaimed and recycled devices as these are no longer used for the same application because the materials lose their properties. With our hydrogels we are a step closer to a circular economy by allowing the reuse of electronic devices and reducing electronic waste worldwide. Moreover, the superior performance of the PEDOT/Alg hydrogel opens up its utilization as an efficient and flexible pressure sensor for wearable human-electronic interfaces, in which reusability would be an added value.
dc.format.extent14 p.
dc.language.isoeng
dc.publisherRoyal Society of Chemistry (RSC)
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshPolymers -- Testing
dc.subject.lcshConducting polymers
dc.subject.otherConducting polymer
dc.subject.otherhydrogel
dc.titleConductive, self-healable and reusable poly(3,4-ethylenedioxythiophene)-based hydrogels for highly sensitive pressure arrays
dc.typeArticle
dc.subject.lemacPolímers -- Proves
dc.subject.lemacPolímers conductors
dc.contributor.groupUniversitat Politècnica de Catalunya. IMEM-BRT- Innovation in Materials and Molecular Engineering - Biomaterials for Regenerative Therapies
dc.contributor.groupUniversitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits
dc.identifier.doi10.1039/d0tc01947j
dc.relation.publisherversionhttps://pubs.rsc.org/en/content/articlelanding/2020/TC/D0TC01947J#!divAbstract
dc.rights.accessOpen Access
local.identifier.drac29239164
dc.description.versionPostprint (author's final draft)
dc.contributor.covenanteeInstitut de Bioenginyeria de Catalunya
local.citation.authorBabeli, I.; Ruano, G.; Casanovas Salas, Jordi; Ginebra, M.P.; Garcia-Torres, J.; Aleman, C.
local.citation.publicationNameJournal of materials chemistry C
local.citation.volume8
local.citation.number25
local.citation.startingPage8654
local.citation.endingPage8667


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record