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Electrochemical Control of Surface Wettability of poly(3-alkylthiophenes)
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-2773-5096
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5154-0291
2006 (English)In: Surface Science, ISSN 0039-6028, Vol. 600, no 11, L148-L152 p.Article in journal (Refereed) Published
Abstract [en]

The effect of n-alkyl side-chain length on water contact angle with films in neutral and electrochemically doped states are studied. Increasing the side-chain from butyl to hexyl to octyl increases the contact angle of water on conjugated polymer films in both electrochemical states, but decreases the difference in angle between the states in the same film. Devices based on these films have potential application in, for example, guiding water and other liquids through microfluidic channels in lab-on-a-chip and micro-electro-mechanical (MEM) applications.

Place, publisher, year, edition, pages
2006. Vol. 600, no 11, L148-L152 p.
Keyword [en]
Water contact angle, Electrochemical phenomena, Surface energy, Wetting, Conducting polymer, Solid–liquid interfaces, Organic semiconductors
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-14642DOI: 10.1016/j.susc.2006.03.039OAI: oai:DiVA.org:liu-14642DiVA: diva2:24082
Available from: 2008-11-12 Created: 2008-11-12 Last updated: 2017-02-03
In thesis
1. Organic Bioelectronics: Electrochemical Devices using Conjugated Polymers
Open this publication in new window or tab >>Organic Bioelectronics: Electrochemical Devices using Conjugated Polymers
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Since the Nobel Prize awarded discovery that some polymers or “plastics” can be made electronically conducting, the scientific field of organic electronics has arisen. The use of conducting polymers in electronic devices is appealing, because the materials can be processed from a liquid phase, much like ordinary non-conducting plastics. This gives the opportunity to utilize printing technologies and manufacture electronics roll-to-roll on flexible substrates, ultimately at very low costs. Even more intriguing are the possibilities to achieve completely novel functionalities in combination with the inherent compatibility of these materials with biological species. Therefore, organic electronics can be merged with biology and medicine to create organic bioelectronics, i.e. organic electronic devices that interact with biological samples directly or are used for biological applications.

This thesis aims at giving a background to the field of organic bioelectronics and focuses on how electrochemical devices may be utilized. An organic electronic wettability switch that can be used for lab-on-a-chip applications and control of cell growth as well as an electrochemical ion pump for cell communication and drug delivery are introduced. Furthermore, the underlying electrochemical structures that are the basis for the above mentioned devices, electrochemical display pixels etc. are discussed in detail. In summary, the work contributes to the understanding of electrochemical polymer electronics and, by presenting new bioelectronic inventions, builds a foundation for future projects and discoveries.

Place, publisher, year, edition, pages
Institutionen för teknik och naturvetenskap, 2007
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1128
National Category
Materials Engineering
Identifiers
urn:nbn:se:liu:diva-9679 (URN)978-91-85831-03-6 (ISBN)
Public defence
2007-10-26, K3, Kåkenhus, Campus Norrköping, Norrköping, 10:00 (English)
Opponent
Supervisors
Available from: 2007-10-03 Created: 2007-10-03 Last updated: 2017-02-03

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Robinson, LindaIsaksson, JoakimRobinson, NathanielBerggren, Magnus

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