A Microfluidic Platform for Sheathless Acoustic Particle Separation
讲座名称：
A Microfluidic Platform for Sheathless Acoustic Particle Separation
讲座时间：
2012-05-17
讲座人：
者江
形式：
校区：
兴庆校区
实践学分：
讲座内容：
应能动学院副院长赵亮教授的邀请，美国阿克伦大学机械工程学院教授来访我校，访问期间将作学术报告。
报告名称：A Microfluidic Platform for Sheathless Acoustic Particle Separation
报告地点：能动学院东三楼东汽报告厅
报告时间：2012年5月17日(周四)上午9:00
讲座简介：
The separation of particles or cells is critical for many biological and biomedical applications, including cell biology, diagnostics and therapeutics. I will present a microfluidic platform for sheathless particle separation using standing surface acoustic waves. In the proposed platform, micro scale particles are first lined up at the center of the channel without introducing any external sheath flow by using standing surface acoustic waves. After focused at the center of the channel, the particles are then entered into the 2nd-stage particle separation stage where all particles are driven towards the off-center pressure nodes. The larger particles are exposed to more lateral displacement in the channel due to the acoustic forces differences.
Consequently, different-size particles are separated into multiple collection outlets. The prominent feature of the present microfluidic platform is that the device does not require the use of the sheath flow for positioning and aligning of particles necessary for the separation process. The sheathless flow focusing and separation are integrated within a single microfluidic device and accomplished simultaneously. In this study, we demonstrated the separation of two different size particle streams (3µm and 10µm) with this particle separation platform without introducing any external sheath flow.
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