Surface deep: Light-responsive top layer of plastic film induces movement -- K Trade Fair

Surface deep: Light-responsive top layer of plastic film induces movement

The film (l.) is mostly composed of a non-photoresponsive polymer (200-400 nm), and a photoresponsive polymer layer exists only at the surface (some nm thick). Photograph of the films and surface shape after UV radiation through a photomask (r-). Image: I. Kitamura/Springer Nature

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