通过尖的3D微观结构增强声波流效果
William S Harley1,2,3, Kirill Kolesnik1,3, Daniel E Heath1,3
1Department of Biomedical Engineering, University of Melbourne, Melbourne, VIC 3010, Australia. david.collins@unimelb.edu.au.
Lab on a chip
|February 15, 2024
概括
这项研究探讨了用于声流体微操作的3D微结构,增强了细胞和粒子操纵. 研究人员发现,微观结构的形状调整了声流,用于精确的生物医学应用.
科学领域:
- 生物医学工程 生物医学工程
- 声学流体学 声学流体学
- 微观尺度的现象
背景情况:
- 声流体微操纵使用声力来快速,无接触地操纵生物样品.
- 之前的2D尖端设备显示出希望,但3D结构为增强性能提供了潜力.
研究的目的:
- 在3D尖端微观结构附近调查高幅度的声流.
- 探索3D微观结构几何学对声学操纵能力的影响.
主要方法:
- 围绕3D微观结构的声流场的数值建模.
- 参数配置的3D微结构的实验制造和表征.
主要成果:
- 演示了可调节的声流速度和复杂的旋模式.
- 相关的微观结构尖角和几何与流动行为.
- 经过验证的模拟结果与实验观察.
结论:
- 三维尖端微观结构使可调和复杂的声学流用于微操作.
- 这些结构为精确的生物医学应用提供了增强的能力.
- 微结构设计是优化声流体操纵的关键.
更多相关视频
12:26Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
Published on: August 27, 2013
17.1K
05:17Author Spotlight: Development of a Scaffold-Free Acoustic Assembly Method for High-Quality 3D Cell Spheroid Culture
Published on: October 13, 2023
1.1K
相关概念视频
00:53Sound Waves: Interference
3.7K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.7K
01:16Shock Waves
2.0K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.0K