Remote Spatiotemporal Control of a Magnetic and Electroconductive Hydrogel Network via Magnetic Fields for Soft Electronic Applications
| Autor: | Joan Josep Roa, Maria-Pau Ginebra, Anna Puiggalí-Jou, Carlos Alemán, Jose García-Torres, Ismael Babeli, Jaume Garcia-Amorós, Justin O. Zoppe |
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| Přispěvatelé: | 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, Fiabilitat i Micromecànica dels Materials, Universitat Politècnica de Catalunya. POLY2 - Polyfunctional polymeric materials, Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Magnetite nanoparticle
Soft electronics Materials science Biocompatibility Polymer network Temperature sensing conductive hydrogel Spatiotemporal control Nanotechnology magnetic field Enginyeria dels materials [Àrees temàtiques de la UPC] soft electronics spatiotemporal control Magnetic field Magnetite Nanoparticles Magnetic hyperthermia PEDOT:PSS Materials biomèdics Self-healing hydrogels Conductive hydrogel General Materials Science magnetite nanoparticle Biomedical materials Research Article |
| Zdroj: | ACS Applied Materials & Interfaces UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | Multifunctional hydrogels are a class of materials offering new opportunities for interfacing living organisms with machines due to their mechanical compliance, biocompatibility, and capacity to be triggered by external stimuli. Here, we report a dual magnetic- and electric-stimuli-responsive hydrogel with the capacity to be disassembled and reassembled up to three times through reversible cross-links. This allows its use as an electronic device (e.g., temperature sensor) in the cross-linked state and spatiotemporal control through narrow channels in the disassembled state via the application of magnetic fields, followed by reassembly. The hydrogel consists of an interpenetrated polymer network of alginate (Alg) and poly(3,4-ethylenedioxythiophene) (PEDOT), which imparts mechanical and electrical properties, respectively. In addition, the incorporation of magnetite nanoparticles (Fe3O4 NPs) endows the hydrogel with magnetic properties. After structural, (electro)chemical, and physical characterization, we successfully performed dynamic and continuous transport of the hydrogel through disassembly, transporting the polymer–Fe3O4 NP aggregates toward a target using magnetic fields and its final reassembly to recover the multifunctional hydrogel in the cross-linked state. We also successfully tested the PEDOT/Alg/Fe3O4 NP hydrogel for temperature sensing and magnetic hyperthermia after various disassembly/re-cross-linking cycles. The present methodology can pave the way to a new generation of soft electronic devices with the capacity to be remotely transported. |
| Databáze: | OpenAIRE |
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