Re- and Preconfigurable Multistable Visible Light Responsive Surface Topographies
| Autor: | Ellen P. A. van Heeswijk, Pascal Jonkheijm, Stefan Hecht, Jeroen ter Schiphorst, David Bléger, Albertus P. H. J. Schenning, Gülistan Koçer, Matthew Hendrikx, Christopher Knie, Dirk J. Broer |
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| Přispěvatelé: | Molecular Nanofabrication, Institute for Complex Molecular Systems, Stimuli-responsive Funct. Materials & Dev. |
| Rok vydání: | 2018 |
| Předmět: |
Surface (mathematics)
Materials science Bistability business.industry UT-Hybrid-D 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences multistable topographies 0104 chemical sciences Biomaterials Light responsive configurable surface actuation Optoelectronics General Materials Science fluorinated azobenzenes 0210 nano-technology business Isomerization Biotechnology Blue light Visible spectrum visible light responsive liquid crystal networks |
| Zdroj: | Small Small, 14(50):1803274. Wiley-VCH Verlag Small : Nano Micro, 14(50):1803274. Wiley-VCH Verlag |
| ISSN: | 1613-6829 1613-6810 |
| Popis: | Light responsive materials that are able to change their shape are becoming increasingly important. However, preconfigurable bistable or even multi-stable visible light responsive coatings have not been reported yet. Such materials will require less energy to actuate and will have a longer lifetime. Here, it is shown that fluorinated azobenzenes can be used to create rewritable and pre-configurable responsive surfaces that show multi-stable topographies. These surface structures can be formed and removed by using low intensity green and blue light, respectively. Multistable preconfigured surface topographies can also be created in the absence of a mask. The method allows for full control over the surface structures as the topographical changes are directly linked to the molecular isomerization processes. Preliminary studies reveal that these light responsive materials are suitable as adaptive biological surfaces. |
| Databáze: | OpenAIRE |
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