Characterization of Bio-Inspired Electro-Conductive Soy Protein Films
dc.contributor.author | Guerrero Manso, Pedro Manuel | |
dc.contributor.author | Garrido Díaz, Tania | |
dc.contributor.author | García Orúe, Itxaso | |
dc.contributor.author | Santos Vizcaíno, Edorta | |
dc.contributor.author | Igartua Olaechea, Manuela | |
dc.contributor.author | Hernández Martín, Rosa María | |
dc.contributor.author | De la Caba Ciriza, María Coro | |
dc.date.accessioned | 2021-02-09T13:22:41Z | |
dc.date.available | 2021-02-09T13:22:41Z | |
dc.date.issued | 2021-01-28 | |
dc.identifier.citation | Polymers 13(3) : (2021) // Article ID 416 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/50124 | |
dc.description.abstract | Protein-based conductive materials are gaining attention as alternative components of electronic devices for value-added applications. In this regard, soy protein isolate (SPI) was processed by extrusion in order to obtain SPI pellets, subsequently molded into SPI films by hot pressing, resulting in homogeneous and transparent films, as shown by scanning electron microscopy and UV-vis spectroscopy analyses, respectively. During processing, SPI denatured and refolded through intermolecular interactions with glycerol, causing a major exposition of tryptophan residues and fluorescence emission, affecting charge distribution and electron transport properties. Regarding electrical conductivity, the value found (9.889 × 10−4 S/m) is characteristic of electrical semiconductors, such as silicon, and higher than that found for other natural polymers. Additionally, the behavior of the films in contact with water was analyzed, indicating a controlled swelling and a hydrolytic surface, which is of great relevance for cell adhesion and spreading. In fact, cytotoxicity studies showed that the developed SPI films were biocompatible, according to the guidelines for the biological evaluation of medical devices. Therefore, these SPI films are uniquely suited as bioelectronics because they conduct both ionic and electronic currents, which is not accessible for the traditional metallic conductors. | es_ES |
dc.description.sponsorship | This research was funded by MCI/AEI/FEDER, UE, grant number RTI2018-097100-B-C22. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/RTI2018-097100-B-C22. | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | soy protein | es_ES |
dc.subject | film | es_ES |
dc.subject | semiconductor | es_ES |
dc.subject | biomaterial | es_ES |
dc.title | Characterization of Bio-Inspired Electro-Conductive Soy Protein Films | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2021-02-05T14:11:40Z | |
dc.rights.holder | 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/13/3/416/htm | es_ES |
dc.identifier.doi | 10.3390/polym13030416 | |
dc.departamentoes | Ingeniería química y del medio ambiente | |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza |
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Except where otherwise noted, this item's license is described as 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).