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Issue 7, 2012
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A three-dimensional microvascular gas exchange unit for carbon dioxide capture

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Abstract

For the capture of CO2 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 CO2 from flowing gas created using the recently reported Vaporization of a Sacrificial Component (VaSC) technique. We demonstrate the spatiotemporal pattern of CO2 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.

Graphical abstract: A three-dimensional microvascular gas exchange unit for carbon dioxide capture

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Supplementary files

Article information


Submitted
07 Jan 2012
Accepted
03 Feb 2012
First published
03 Feb 2012

Lab Chip, 2012,12, 1246-1250
Article type
Technical Innovation

A three-dimensional microvascular gas exchange unit for carbon dioxide capture

D. T. Nguyen, Y. T. Leho and A. P. Esser-Kahn, Lab Chip, 2012, 12, 1246
DOI: 10.1039/C2LC00033D

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