公开(公告)号：US11369961B2

公开(公告)日：2022-06-28

申请号：US16705847

申请日：2019-12-06

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung-Jin Sung ,  Jinsoo Park ,  Ghulam Destgeer ,  Yeunwoo Cho ,  Hyoungsoo Kim

IPC: B01L3/00 ,  G01N15/10 ,  G01N15/00

Abstract: The present invention provides an apparatus and method for washing and concentrating microparticles encapsulated in microscale droplets using an acoustic radiation force. The apparatus includes: a piezoelectric substrate; a slanted finger interdigital transducer (SIDT) electrode deposited on the piezoelectric substrate and configured to generate surface acoustic waves under an AC signal applied thereto; and a microfluidic chip which is adhered to the piezoelectric substrate with being spaced apart from the SIDT electrode, has a microscale channel section formed therein, in which a single continuous phase and a plurality of dispersed phases are injected, respectively, and includes a plurality of inlet ports into which continuous and dispersed phases are injected, and a discharge port from which a plurality of droplets composed of the continuous and dispersed phases and generated by the intersection thereof are discharged.