Vines repair themselves: pipevine
Stems of pipevines repair fissures and ruptures in their strengthening tissues by parenchyma cells from surrounding tissues swelling into the fissure to seal it.
|Biomimetic Application Ideas|
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"This study reveals in detail the mechanism of self-repair during secondary growth in the vines Aristolochia macrophylla and Aristolochia ringens based on morphological data. For a comprehensive understanding of the underlying mechanisms during the self-repair of lesions in the sclerenchymatous cylinder of the stem, which are caused by internal growth stresses, a classification of morphological changes in the cells involved in the repair process is required. In an early stage of self-repair, we observed morphological changes as a mere extension of the turgescent cortex cells surrounding the lesion, whereby the cell wall extends locally through visco-elastic/plastic deformation without observable cell wall synthesis. Later stages involve typical cell growth and cell division. Several successive phases of self-repair were investigated by light microscopy of stained samples and confocal laser-scanning microscopy in fluorescence mode. The results indicate that A. macrophylla and A. ringens respond to lesions caused by internal growth stresses with a sophisticated self-repair mechanism comprising several phases of different repair modes." (Busch et al. 2010:2113)
Application Ideas: Lightweight architecture that self-seals. Self-sealing pneumatic structures. Self-repairing clothing, medical technology, pipelines, etc.
Industrial Sector(s) interested in this strategy: Manufacturing, construction, medical, textilesSelf-repairing Concrete - Concrete
Self-healing foams and membranes - Self-healing foams and membranes
Self-repairing concrete - Self-repairing concrete structures
Self-repairing polymer composites - Self-repairing polymer composites
University of Freiburg