Department of Chemistry, Chemical Engineering and Material Science, and Biomedical Engineering, University of California, Irvine, Irvine California 92697, USA.
Lab Chip. 2012 Apr 7;12(7):1246-50. doi: 10.1039/c2lc00033d. Epub 2012 Feb 17.
For the capture of CO(2) from mixed gas streams, materials for increased gas exchange are necessary. Efficient gas exchange systems already exist in the form of vascularized lung-tissue. Herein we report a fabrication technique for the synthesis of three-dimensional microvascular gas exchange units capable of removing CO(2) from flowing gas created using the recently reported Vaporization of a Sacrificial Component (VaSC) technique. We demonstrate the spatiotemporal pattern of CO(2) reactivity in the microvascular gas exchange unit using colorimetric, pH sensitive dyes. Control over three-dimensional placement of channels is shown to increase capture efficiencies. A computational finite element model validates and explains the experimental observations.
对于混合气流中 CO(2)的捕获，需要增加气体交换的材料。高效的气体交换系统已经以血管化的肺组织的形式存在。在这里，我们报告了一种用于合成三维微血管气体交换单元的制造技术，该单元能够使用最近报道的牺牲成分蒸发（VaSC）技术从流动气体中去除 CO(2)。我们使用比色、pH 敏感染料来证明微血管气体交换单元中 CO(2)反应的时空模式。证明了对通道三维位置的控制可以提高捕获效率。计算有限元模型验证并解释了实验观察结果。
