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Gelatin and Tannic Acid Based Iongels for Muscle Activity Recording and Stimulation Electrodes.
Aguzin, Ana; Luque, Gisela C; Ronco, Ludmila I; Del Agua, Isabel; Guzmán-González, Gregorio; Marchiori, Bastien; Gugliotta, Agustina; Tomé, Liliana C; Gugliotta, Luis M; Mecerreyes, David; Minari, Roque J.
Affiliation
  • Aguzin A; Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina.
  • Luque GC; Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina.
  • Ronco LI; Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe 3000, Argentina.
  • Del Agua I; Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina.
  • Guzmán-González G; Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe 3000, Argentina.
  • Marchiori B; Panaxium SAS, Aix-en-Provence 13100, France.
  • Gugliotta A; POLYMAT University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain.
  • Tomé LC; Panaxium SAS, Aix-en-Provence 13100, France.
  • Gugliotta LM; UNL, CONICET, FBCB (School of Biochemistry and Biological Sciences), CBL (Biotechnological Center of Litoral), Ciudad Universitaria, Ruta Nacional 168 Km 472.4, C.C. 242., S3000ZAA Santa Fe, Argentina.
  • Mecerreyes D; LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
  • Minari RJ; Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina.
ACS Biomater Sci Eng ; 8(6): 2598-2609, 2022 06 13.
Article in En | MEDLINE | ID: mdl-35649235
Iongels are soft ionic conducting materials, usually composed of polymer networks swollen with ionic liquids (ILs), which are being investigated for applications ranging from energy to bioelectronics. The employment of iongels in bioelectronic devices such as bioelectrodes or body sensors has been limited by the lack of biocompatibility of the ILs and/or polymer matrices. In this work, we present iongels prepared from solely biocompatible materials: (i) a biobased polymer network containing tannic acid as a cross-linker in a gelatin matrix and (ii) three different biocompatible cholinium carboxylate ionic liquids. The resulting iongels are flexible and elastic with Young's modulus between 11.3 and 28.9 kPa. The morphology of the iongels is based on a dual polymer network system formed by both chemical bonding due to the reaction of the gelatin's amines with the polyphenol units and physical interactions between the tannic acid and the gelatin. These biocompatible iongels presented high ionic conductivity values, from 0.003 and up to 0.015 S·cm-1 at room temperature. Furthermore, they showed excellent performance as a conducting gel in electrodes for electromyography and electrocardiogram recording as well as muscle stimulation.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Ionic Liquids / Gelatin Language: En Journal: ACS Biomater Sci Eng Year: 2022 Document type: Article Affiliation country: Argentina Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Ionic Liquids / Gelatin Language: En Journal: ACS Biomater Sci Eng Year: 2022 Document type: Article Affiliation country: Argentina Country of publication: United States