Max-Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, Potsdam, 14476, Germany.
Institute of Cultural History and Theory, Humboldt Universität zu Berlin, Berlin, 10117, Germany.
Adv Mater. 2021 Jul;33(28):e2001412. doi: 10.1002/adma.202001412. Epub 2020 Aug 4.
Wood is a prototypical biological material, which adapts to mechanical requirements. The microarchitecture of cellulose fibrils determines the mechanical properties of woody materials, as well as their actuation properties, based on absorption and desorption of water. Herein it is argued that cellulose fiber orientation corresponds to an analog code that determines the response of wood to humidity as an active material. Examples for the harvesting of wood activity, as well as bioinspiration, are given.
木材是一种典型的生物材料，能够适应机械要求。纤维素纤维的微观结构决定了木质材料的机械性能，以及它们基于吸收和释放水分的致动性能。本文认为，纤维素纤维的取向对应于一种模拟代码，该代码决定了木材作为一种活性材料对湿度的响应。文中给出了木材活性的采集实例以及生物启示。
