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Hesselmann F, Arnemann D, Bongartz P, Wessling M, Cornelissen C, Schmitz-Rode T, Steinseifer U, Jansen SV, Arens J. Three-dimensional membranes for artificial lungs: Comparison of flow-induced hemolysis. Artif Organs 2021; 46:412-426. [PMID: 34606117 DOI: 10.1111/aor.14081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/11/2021] [Accepted: 09/22/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Membranes based on triply periodic minimal surfaces (TPMS) have proven a superior gas transfer compared to the contemporary hollow fiber membrane (HFM) design in artificial lungs. The improved oxygen transfer is attributed to disrupting the laminar boundary layer adjacent to the membrane surface known as main limiting factor to mass transport. However, it requires experimental proof that this improvement is not at the expense of greater damage to the blood. Hence, the aim of this work is a valid statement regarding the structure-dependent hemolytic behavior of TPMS structures compared to the current HFM design. METHODS Hemolysis tests were performed on structure samples of three different kind of TPMS-based designs (Schwarz-P, Schwarz-D and Schoen's Gyroid) in direct comparison to a hollow fiber structure as reference. RESULTS The results of this study suggest that the difference in hemolysis between TPMS membranes compared to HFMs is small although slightly increased for the TPMS membranes. There is no significant difference between the TPMS structures and the hollow fiber design. Nevertheless, the ratio between the achieved additional oxygen transfer and the additional hemolysis favors the TPMS-based membrane shapes. CONCLUSION TPMS-shaped membranes offer a safe way to improve gas transfer in artificial lungs.
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Affiliation(s)
- Felix Hesselmann
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Daniel Arnemann
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Patrick Bongartz
- Chair of Chemical Process Engineering, RWTH Aachen University, Aachen, Germany
| | - Matthias Wessling
- Chair of Chemical Process Engineering, RWTH Aachen University, Aachen, Germany.,DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Aachen, Germany
| | - Christian Cornelissen
- Department of Pneumology and Internal Intensive Care Medicine, Medical Clinic V, RWTH Aachen University Hospital, Aachen, Germany
| | - Thomas Schmitz-Rode
- Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Ulrich Steinseifer
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Sebastian Victor Jansen
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Jutta Arens
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany.,Chair of Engineering Organ Support Technologies, Department of Biomechanical Engineering, Faculty of Engineering, Technology University of Twente, Twente, The Netherlands
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Chen F, Gong AS, Zhu M, Chen G, Lacey SD, Jiang F, Li Y, Wang Y, Dai J, Yao Y, Song J, Liu B, Fu K, Das S, Hu L. Mesoporous, Three-Dimensional Wood Membrane Decorated with Nanoparticles for Highly Efficient Water Treatment. ACS Nano 2017; 11:4275-4282. [PMID: 28362487 DOI: 10.1021/acsnano.7b01350] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Wood, an earth-abundant material, is widely used in our everyday life. With its mesoporous structure, natural wood is comprised of numerous long, partially aligned channels (lumens) as well as nanochannels that stretch along its growth direction. This wood mesostructure is suitable for a range of emerging applications, especially as a membrane/separation material. Here, we report a mesoporous, three-dimensional (3D) wood membrane decorated with palladium nanoparticles (Pd NPs/wood membrane) for efficient wastewater treatment. The 3D Pd NPs/wood membrane possesses the following advantages: (1) the uniformly distributed lignin within the wood mesostructure can effectively reduce Pd(II) ions to Pd NPs; (2) cellulose, with its abundant hydroxyl groups, can immobilize Pd NPs; (3) the partially aligned mesoporous wood channels as well as their inner ingenious microstructures increase the likelihood of wastewater contacting Pd NPs decorating the wood surface; (4) the long, Pd NP-decorated channels facilitate bulk treatment as water flows through the entire mesoporous wood membrane. As a proof of concept, we demonstrated the use and efficiency of a Pd NPs/wood membrane to remove methylene blue (MB, C16H18N3ClS) from a flowing aqueous solution. The turnover frequency of the Pd NPs/wood membrane, ∼2.02 molMB·molPd-1·min-1, is much higher than the values reported in the literature. The water treatment rate of the 3D Pd NPs/wood membrane can reach 1 × 105 L·m-2·h-1 with a high MB removal efficiency (>99.8%). The 3D mesoporous wood membrane with partially aligned channels exhibits promising results for wastewater treatment and is applicable for an even wider range of separation applications.
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Affiliation(s)
- Fengjuan Chen
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Amy S Gong
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Mingwei Zhu
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Guang Chen
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Steven D Lacey
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Feng Jiang
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yongfeng Li
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yanbin Wang
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jiaqi Dai
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yonggang Yao
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jianwei Song
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Boyang Liu
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Kun Fu
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Siddhartha Das
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
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