We demonstrate a device using the surface acoustic waves to design the interdigital transducer on lithium niobate. Combined with the inverse piezoelectric effect to achieve standing waves to separate the target in the microfluidics.


Cellular analysis is a central concept for both biology and medicine. This platform takes advantage of the contactless, and noninvasive nature of acoustic forces. In the cell separation, exerting minimal interference on the cellular microenvironment while preserving high cell integrity.

We design IDTs on the lithium niobate to generate the SAW and simulate the displacements on the surface and the movement of micro/nano particles in microfluids channel is a laminar flow without SAW operation.

After applying the electrical signal to device, it can be found that the particles are affected by surface acoustic waves and move upwards above the exit of the channel.