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A Four-Diode Full-Wave Ionic Current Rectifier Based on Bipolar Membranes: Overcoming the Limit of Electrode Capacity
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology. (Laboratory of Organic Electronics)ORCID iD: 0000-0002-0302-226X
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology. (Laboratory of Organic Electronics)
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology. (Laboratory of Organic Electronics)ORCID iD: 0000-0002-9845-446X
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology. (Laboratory of Organic Electronics)ORCID iD: 0000-0002-2799-3490
Show others and affiliations
2014 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 26, no 30, 5143-5147 p.Article in journal (Refereed) Published
Abstract [en]

Full-wave rectification of ionic currents is obtained by constructing the typical four-diode bridge out of ion conducting bipolar membranes. Together with conjugated polymer electrodes addressed with alternating current, the bridge allows for generation of a controlled ionic direct current for extended periods of time without the production of toxic species or gas typically arising from electrode side-reactions.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2014. Vol. 26, no 30, 5143-5147 p.
Keyword [en]
bioelectronics, ionics, ion transport, bipolar membranes, conjugated polymer electrodes
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Polymer Technologies
Identifiers
URN: urn:nbn:se:liu:diva-110403DOI: 10.1002/adma.201401258ISI: 000340546300010PubMedID: 24863171OAI: oai:DiVA.org:liu-110403DiVA: diva2:745452
Funder
Vinnova, 2010–00507EU, FP7, Seventh Framework Programme, iONE-FP7Swedish Research Council, 621–2011–3517EU, FP7, Seventh Framework Programme, OrgBIO
Available from: 2014-09-10 Created: 2014-09-10 Last updated: 2017-12-05Bibliographically approved
In thesis
1. Monopolar and Bipolar Membranes in Organic Bioelectronic Devices
Open this publication in new window or tab >>Monopolar and Bipolar Membranes in Organic Bioelectronic Devices
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In the 1970s it was discovered that organic polymers, a class of materials otherwise best know as insulating plastics, could be made electronically conductive. As an alternative to silicon semiconductors, organic polymers offer many novel features, characteristics, and opportunities, such as producing electronics at low costs using printing techniques, using organic chemistry to tune optical and electronic properties, and mechanical flexibility. The conducting organic polymers have been used in a vast array of devices, exemplified by organic transistors, light-emitting diodes, and solar cells. Due to their softness, biocompatibility, and combined electronic and ionic transport, organic electronic materials are also well suited as the active material in bioelectronic applications, a scientific and engineering area in which electronics interface with biology. The coupling of ions and electrons is especially interesting, as ions serve as signal carriers in all living organisms, thus offering a direct translation of electronic and ionic signals. To further enable complex control of ionic fluxes, organic electronic materials can be integrated with various ionic components, such as ion-conducting diodes and transistors.

This thesis reports a background to the field of organic bioelectronic and ionic devices, and also presents the integration of ionic functions into organic bioelectronic devices. First, an electrophoretic drug delivery device is presented, capable of delivering ions at high spatiotemporal resolution. The device, called the organic electronic ion pump, is used to electronically control amyloid-like aggregation kinetics and morphology of peptides, and offers an interesting method for studying amyloids in vitro. Second, various ion-conducting diodes based on bipolar membranes are described. These diodes show high rectification ratio, i.e. conduct ions better for positive than for negative applied voltage. Simple ion diode based circuits, such as an AND gate and a full-wave rectifier, are also reported. The AND gate is intended as an addressable pH pixel to regulate for example amyloid aggregation, while the full-wave rectifier decouples the electrochemical capacity of an electrode from the amount of ionic charge it can generate. Third, an ion transistor, also based on bipolar membranes, is presented. This transistor can amplify and control ionic currents, and is suitable for building complex ionic logic circuits. Together, these results provide a basic toolbox of ionic components that is suitable for building more complex and/or implantable organic bioelectronic devices.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2014. 76 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1620
Keyword
bioelectronics, ionic, ion transport;bipolar membrane, conjugated polymer, amyloid, self-assembly
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:liu:diva-110406 (URN)10.3384/diss.diva-110406 (DOI)978-91-7519-244-4 (ISBN)
Public defence
2014-10-10, K2, Kåkenhus, Campus Norrköping, Linköpings Universitet, Norrköping, 10:00 (English)
Opponent
Supervisors
Available from: 2014-09-10 Created: 2014-09-10 Last updated: 2017-02-03Bibliographically approved

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