DocumentCode :
1955065
Title :
Concentration of microbubbles with surface acoustic wave devices
Author :
Meng, Long ; Cai, Feiyan ; Jin, Qiaofeng ; Wang, Zhanhui ; Zheng, Hairong ; Peng, Dasong ; Chen, Peidi
Author_Institution :
Inst. of Biomed. & Health, Chinese Acad. of Sci., Shenzhen, China
fYear :
2010
fDate :
11-14 Oct. 2010
Firstpage :
740
Lastpage :
743
Abstract :
An effective technique to concentrate the lipid-coated microbubbles within a droplet based on the surface acoustic wave is demonstrated. A droplet was partially placed on a surface acoustic wave propagation path, and microbubbles were concentrated at the center of the droplet due to the asymmetry. The device consist a lithium niobate piezoelectric substrate and a pair of interdigital transducer electrodes for SAW excitation and detection. The concentrate rate increases as improving the input power or the concentration of microbubbles. This method would have potential applications on drug screening, bioassays, and other biomedical devices.
Keywords :
biomedical electrodes; biomedical transducers; biomedical ultrasonics; bubbles; interdigital transducers; surface acoustic wave transducers; ultrasonic transducers; LiNbO3; SAW detection; SAW excitation; bioassays; biomedical devices; drug screening; interdigital transducer electrodes; lipid-coated microbubbles; lithium niobate piezoelectric substrate; surface acoustic wave devices; surface acoustic wave propagation; Drugs; Force; Substrates; Surface acoustic wave devices; Surface acoustic waves; acoustic streaming; microbubbles; surface acoustic wave;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
ISSN :
1948-5719
Print_ISBN :
978-1-4577-0382-9
Type :
conf
DOI :
10.1109/ULTSYM.2010.5935611
Filename :
5935611
Link To Document :
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