title: Non-contact multi-particle annular patterning and manipulation with ultrasound microbeam.
abstract: Multiparticle-trapping offers diverse opportunities and applications in biotechnology. It can be applied to creating various functional materials or organizing reactive particles. In this paper, we demonstrate that it is possible to trap and manipulate multi-particles in an annular pattern with a 24 MHz focused ring-type single element ultrasound transducer. Acoustic ring trap can be useful in undertaking biotropism studies due to an equal-distance condition from the center. Also, this ring trap could serve as a force shield to protect analysis area from other cells. The experimental results showed the capability of the proposed method as a multi-cell manipulator in formatting specific patterns of small cells like sperms.
authors.affiliation: NIH Resource Center for Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California , Los Angeles, California 90089, USA.
authors.forename: Changyang
authors.initials: C
authors.lastname: Lee
authors.affiliation: Department of Medical Biotechnology, Dongguk University , Seoul, South Korea.
authors.forename: Jong
authors.initials: J
authors.lastname: Seob Jeong
authors.affiliation: Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science & Technology , Daegu, South Korea.
authors.forename: Jae
authors.initials: J
authors.lastname: Youn Hwang
authors.affiliation: Department of Electronic Engineering, Kwangwoon University , Seoul, South Korea.
authors.forename: Jungwoo
authors.initials: J
authors.lastname: Lee
authors.affiliation: NIH Resource Center for Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California , Los Angeles, California 90089, USA.
authors.forename: K
authors.initials: K
authors.lastname: Kirk Shung
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