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Graphene-Enabled El...
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Seitanidou, Maria S,1985-Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
(author)
Graphene-Enabled Electrophoretic Ion Pump Delivery Devices
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-02-26
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Wiley,2022
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-183571
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-183571URI
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https://doi.org/10.1002/admi.202102507DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Funding Agencies|FLAG-ERA JTC 2017 project EPIGRAPH; Vinnova (Sweden)Vinnova; GSRT (Greece)Greek Ministry of Development-GSRT [T18EPA2-00008]; Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation; Swedish Foundation for Strategic ResearchSwedish Foundation for Strategic Research
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Organic electronic ion pumps (OEIPs) have been investigated as a promising solution for precise local delivery of biological signaling compounds. OEIP miniaturization provides several advantages, ranging from better spatiotemporal control of delivery to reduced invasiveness for implanted devices. One miniaturization route is to develop OEIPs based on polyelectrolyte-filled capillary fibers. These devices can be easily brought into proximity of targeted cells and tissues and could be considered as a starting point for other "iontronic" implants. To date, OEIPs and other such iontronics exhibit a limited electrode capacity as they generally rely on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) electrodes. While this material is well studied and viable in mixed ion-electron systems, its bulk capacitance is limited by eventual redox reactions. Graphene is an excellent alternative for high-performance electrodes and low-cost solution-processed graphene derivatives are particularly promising, exhibiting high charge mobility and ideal structural properties (lightness, flexibility). Here, the application of solution-processed reduced graphene oxide (RGO) as high-performance driving electrodes for OEIPS is presented. RGO electrodes are characterized and compared with standard PEDOT:PSS (and Ag/AgCl) electrodes. The RGO exhibits greater charge storage capacity and thus increased operational lifetime. The graphene-enabled OEIPs exhibit improved neurotransmitter transport, without imposing limitations to the applied current level.
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Sygletou, MariaFdn Res & Technol Hellas Forth, Greece
(author)
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Savva, KyriakiFdn Res & Technol Hellas Forth, Greece
(author)
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Berggren, Magnus,Professor,1968-Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)magbe98
(author)
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Stratakis, EmmanuelFdn Res & Technol Hellas Forth, Greece; Univ Crete, Greece
(author)
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Simon, Daniel T,1978-Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)dansi08
(author)
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Linköpings universitetLaboratoriet för organisk elektronik
(creator_code:org_t)
Related titles
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In:Advanced Materials Interfaces: Wiley9:122196-7350
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