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Explained: How Water Gets To Treetops

机译:解释:水如何进入树梢

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The world's first synthetic tree consists of nothing more than a super-skinny tube (the "trunk") connecting two networks of micro-capillaries (one forms the "roots" and the other the "leaves") embedded in a porous polymer. But this fake tree has managed a feat that researchers have struggled for more than a century to duplicate in the lab: transpiration, the process of pumping water from the soil to leaves and then into the air. "This was an unsolved problem, and we took it on as a biophysics challenge," says chemical engineer Abraham Stroock of Cornell University, who published the research in September in Nature.
机译:世界上第一棵人造树仅由一根超细管(“树干”)组成,该管将两个微毛细管网络(一个形成“根”,另一个形成“叶”)连接在多孔聚合物中。但是,这棵假树成功地完成了一项壮举,研究人员在实验室中进行了一个多世纪的努力,才能在实验室中复制它们:蒸腾作用,即从土壤中抽水到树叶然后再进入空气的过程。康奈尔大学的化学工程师亚伯拉罕·斯特罗克(Abraham Stroock)说:“这是一个尚未解决的问题,我们将其视为生物物理学的挑战。”他于9月在《自然》杂志上发表了这项研究。

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