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

ABSTRACT: 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.

SUBMITTER: Nguyen du T

PROVIDER: S-EPMC10642706 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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

Nguyen Du T du T Leho Y T YT Esser-Kahn Aaron P AP

Lab on a chip 20120217 7

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 i ...[more]

PMID: 22344348

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