在氧化中增强气体溶解的共价有机框架膜
Dafei Sheng1, Xinlin Li1, Shuang Zhao1
1Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
具有纳米通道的工程共价有机框架 (COF) 膜显著提高了血液中的氧气传输. 这一突破提高了医疗应用中的气体-液体交换效率.
科学领域:
- 材料科学
- 化学工程
- 生物医学工程
背景情况:
- 膜介导的气体-液体质量转移至关重要,但由于气体在水中的溶解度较低而受到限制.
- 有效的气体交换对于化学反应和生物过程至关重要,包括人工氧化.
研究的目的:
- 开发用于增强气体到液体质量转移的先进膜.
- 研究具有独特纳米通道结构的共价有机框架 (COF) 膜的有效性,以改善氧气传输.
主要方法:
- 具有周期性,水友性梯度纳米通道的高度定向的共价有机框架 (COF) 膜的制造.
- 气体传递速率的描述和与传统膜的比较.
- 血液兼容性和抗凝性质的评估.
主要成果:
- 与巨孔膜相比,设计的COF膜显示出明显更高的氧气溶解率.
- 纳米封闭效应和增加液体半径曲线在纳米通道中增强了氧气传输.
- 获得了前所未有的O2转移速度为2838mL m-2min-1到血液,比poly-methyl-1-pentene高11倍.
结论:
- 开发的COF膜提供了通过膜介导的气体到液体质量转移的优质解决方案.
- 这些膜提供了增强的氧化效率与可比的血液相容性和减少气栓塞的风险.
- 这些发现为下一代人工氧化装置铺平了道路.
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