Non-destructive, non-contact handling and concentration of mu m-sized particles in liquid using superposition method of ultrasound

摘要

The non-destractive, non-contact concentrating method using ulteasound for bioligical analysis was studied. Using the superposition method. which is a kind of fourier synthesis of higher harmonics of ultrasounds, we can arrange the desired shape of acoustic potential well and can concentrate biometerials effectively without any contact, and damage. We also applied the superposition method for continuous concentration and found the method improved the concentration efficiency substantially.