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3 resultater
Reversible water driven chirality inversion in cellulose-based helices isolated from Erodium awns.
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Among the movements observed in some cellulosic structures produced by plants are those that involve the dispersion and burial of seeds, as for example in Erodium from the Geraniaceae plant family. Here we report on a simple and efficient strategy to isolate and tune cellulose-based hygroscopic
Emergence of spontaneous twist and curvature in non-euclidean rods: application to Erodium plant cells.
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We present a limiting model for thin non-euclidean elastic rods. Originating from the three-dimensional (3D) reference metric of the rod, which is determined by its internal material structure, we derive a 1D reduced rod theory. Specifically, we show how the spontaneous twist and curvature of a rod
Quantification of microfibril angle in secondary cell walls at subcellular resolution by means of polarized light microscopy.
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The cell walls constitute the mechanical support of plants. Crystalline cellulose building the walls forms rigid microfibrils that set the stiffness of the cell and the direction in which it expands during growth. Therefore, the determination of the directions of the microfibrils is important in
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