Plastron Respiration Using Commercial Fabrics.
Plastron Respiration Using Commercial Fabrics.
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DOI：
10.3390/ma7010484
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发表时间：
2014-01-16
期刊：
影响因子：
--
通讯作者：
Newton MI
中科院分区：
文献类型：
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作者：
Atherton S;Brennan JC;Morris RH;Smith JDE;Hamlett CAE;McHale G;Shirtcliffe NJ;Newton MI
许多昆虫和蛛形纲动物能够利用腹甲呼吸作用无限期地保持浸没在水中。胸甲是由表面形态产生的表面保留的空气膜，其充当氧-二氧化碳交换表面。许多高度防水和疏水的表面在置于水中时呈现出银色光泽，这是胸甲的特征。在这篇文章中，一系列的市售防水织物和聚合物膜的疏水性进行了研究，以及如何模拟这种水下呼吸机制的材料的表面被证明允许从含氧水中直接提取氧气。使用共聚焦显微镜测量具有腹板空气层的表面的覆盖率。锌/氧电池用于消耗由不同膜构成的容器内的氧，并且将电池消耗的氧与氧探针测量的氧浓度变化进行比较。通过将膜与气密参考样品进行比较，发现膜促进氧从水中转移到容器中，其中最成功的膜显示细胞氧消耗与容器内浓度变化之间的比率为1.90：1。
A variety of insect and arachnid species are able to remain submerged in water indefinitely using plastron respiration. A plastron is a surface-retained film of air produced by surface morphology that acts as an oxygen-carbon dioxide exchange surface. Many highly water repellent and hydrophobic surfaces when placed in water exhibit a silvery sheen which is characteristic of a plastron. In this article, the hydrophobicity of a range of commercially available water repellent fabrics and polymer membranes is investigated, and how the surface of the materials mimics this mechanism of underwater respiration is demonstrated allowing direct extraction of oxygen from oxygenated water. The coverage of the surface with the plastron air layer was measured using confocal microscopy. A zinc/oxygen cell is used to consume oxygen within containers constructed from the different membranes, and the oxygen consumed by the cell is compared to the change in oxygen concentration as measured by an oxygen probe. By comparing the membranes to an air-tight reference sample, it was found that the membranes facilitated oxygen transfer from the water into the container, with the most successful membrane showing a 1.90:1 ratio between the cell oxygen consumption and the change in concentration within the container.