Node (image) Penn State Share Print E-Mail Caption Numerical simulation results mapping the acoustic field around a particle that shows the physical operating principle for the 3-D acoustic tweezers. The 3-D trapping node in the microfluidic chamber is created by two superimposed, orthogonal, standing surface acoustic waves and the induced acoustic streaming. Credit Tony Jun Huang, Penn State Usage Restrictions Non-commercial use only Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.