| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Friedrich, Heiner
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022In Situ Fabrication, Manipulation, and Mechanical Characterization of Free-Standing Silica Thin Films Using Focused Ion Beam Scanning Electron Microscopycitations
- 2022In Situ Fabrication, Manipulation, and Mechanical Characterization of Free-Standing Silica Thin Films Using Focused Ion Beam Scanning Electron Microscopycitations
- 2021Biodegradable Elastic Sponge from Nanofibrous Biphasic Calcium Phosphate Ceramic as an Advanced Material for Regenerative Medicinecitations
- 2021Studying Reaction Mechanisms in Solution Using a Distributed Electron Microscopy Methodcitations
- 2020Nanohybrid materials with tunable birefringence via cation exchange in polymer filmscitations
- 2018Native chemical ligation for cross-linking of flower-like micellescitations
- 2016A chaotic self-oscillating sunlight driven polymer actuatorcitations
- 2013Shear-Induced Orientation of Gyroid PS-b-P4VP(PDP) Supramoleculescitations
- 2013Shear-Induced Orientation of Gyroid PS-b-P4VP(PDP) Supramoleculescitations
- 2009Periodic mesoporous organosilicas consisting of 3D hexagonally ordered interconnected globular porescitations
Places of action
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article
A chaotic self-oscillating sunlight driven polymer actuator
Abstract
Nature provides much inspiration for the design of materials capable of motion upon exposure to external stimuli, and many examples of such active systems have been created in the laboratory. However, to achieve continuous motion driven by an unchanging, constant stimulus has proven extremely challenging. Here we describe a liquid crystalline polymer film doped with a visible light responsive fluorinated azobenzene capable of continuous chaotic oscillatory motion when exposed to ambient sunlight in air. The presence of simultaneous illumination by blue and green light is necessary for the oscillating behavior to occur, suggesting that the dynamics of continuous forward and backward switching are causing the observed effect. Our work constitutes an important step towards the realization of autonomous, persistently self-propelling machines and self-cleaning surfaces powered by sunlight.