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Dynamic Control of Surface Energy and Topography of Microstructured Conducting Polymer Films
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.ORCID iD: 0000-0001-5154-0291
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics.
2008 (English)In: Langmuir, ISSN 0743-7463, Vol. 24, 5942-5948 p.Article in journal (Refereed) Published
Abstract [en]

 Microstructured polymer surfaces, including conducting and insulating polymers, have been prepared to achieve electrochemical control of the surface energy and topography. The reported surface switches include pillar- and mesh-like surface patterns of polypyrrole (PPy), poly(3,4-ethylene-dioxythiophene) (PEDOT), and photoresists. The structures have been evaluated by contact angle measurements and optical and scanning electron microscopy to determine the surfaces characteristics. These microstructured polymer surface switches can be electrochemically modified from dewetting to wetting conditions, with a maximum associated change of the water contact angle from 129° to 44°. This contact angle switching was observed for samples in which dynamic control of the surface topography and surface tension was coupled. Control of topography was achieved with a dynamic height-switching range of more than 3 ìm. In addition, dynamic control of anisotropic wetting is reported. Our experiments were carried out under conditions that are suitable for a biointerface, implying potential application in biotechnology and cell science. In particular, switching of the energy, chemistry, and topography of the surface, along with their associated orientation, are interesting features for dynamic (electronic) control of the seeding and proliferation for living cells. The technology reported promises for electronically controlled cell-growth within Petri dishes, well plates, and other cell-hosting tools. 

Place, publisher, year, edition, pages
2008. Vol. 24, 5942-5948 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-43273DOI: 10.1021/la704006zLocal ID: 73299OAI: oai:DiVA.org:liu-43273DiVA: diva2:264132
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-02-03

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Publisher's full texthttp://www.dx.doi.org/10.1021/la704006z

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Wang, XiangjunBerggren, MagnusInganäs, Olle

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Wang, XiangjunBerggren, MagnusInganäs, Olle
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The Institute of TechnologyDepartment of Science and TechnologyBiomolecular and Organic Electronics
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