一个高面积比率决定性的侧向位移阵列,用于高通量分成
Jonathan Kottmeier1, Maike S Wullenweber2,3, Ingo Kampen2,3
1Institute of Microtechnology, TU Braunschweig, 38124 Braunschweig, Germany.
Micromachines
|June 27, 2024
概括
确定性横向位移 (DLD) 装置现在可以在高吞吐量时分成微粒. 这一突破使化学,制药和回收技术的新工业应用成为可能,通过实现近1L/hr的流量.
科学领域:
- 微流体学 微流体学
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 使用确定性横向位移 (DLD) 的微粒子分化工业应用受到低吞吐量的限制.
- 高体积流量需要研究DLD设备中的高流速和侧面比.
- 缺乏关于在雷诺兹数高于60和面积比高于4:1的10微米以下颗粒的DLD分离的实验数据.
研究的目的:
- 通过使用确定性横移 (DLD) 装置来研究高吞吐量微粒子分化.
- 开发和测试具有高比例的DLD设备,以提高流速.
- 为化学,制药和回收行业提供新的工业应用.
主要方法:
- 开发了一种微制造工艺,使用深度反应性离子蚀刻和高比例 (6:1) DLD设备的阳极粘合.
- 利用模拟和实验分成的聚乙烯颗粒悬浮物.
- 在高达15毫升/分钟 (雷诺德数高达90) 的流量下研究了颗粒分离.
主要成果:
- 成功制造并测试了具有6:1比例的DLD设备.
- 在高流速 (高达Re=90) 实现了2μm与10μm和5μm与10μm颗粒混合物的成功分离.
- 实现了前所未有的微粒子分化吞吐量,即近1L/hr.
结论:
- 高比例的DLD设备可以实现显著更高的微粒分成的吞吐量.
- 开发的DLD技术克服了以前的局限性,为工业规模的应用铺平了道路.
- 这一进步为化学,制药和回收行业开辟了新的可能性.
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