Supplementary material from "Enhancement in acoustic focusing of micro and nanoparticles by thinning a microfluidic device"
Posted on 2019-02-12 - 14:56
The manipulation of micro/nanoparticles has become increasingly important in biological and industrial fields. As a non-contact method for particle manipulation, acoustic focusing has been applied in sorting, enrichment and analysis of particles with microfluidic devices. Although the frequency and amplitude of acoustic waves and the dimensions of microchannels have been recognized as important parameters for acoustic focusing, the thickness of microfluidic devices has not been considered so far. Here, we report that thin glass microfluidic devices enhance acoustic focusing of micro/nanoparticles. It was found that the thickness of a microfluidic device strongly influences its ability to focus particles via acoustic radiation, because the energy propagation of acoustic waves is affected by the total mass of the device. Acoustic focusing of submicrometre polystyrene beads and Escherichia coli as well as enrichment of polystyrene beads were achieved in glass microfluidic devices as thin as 0.4 mm. Modifying the thickness of a microfluidic device can thus serve as a critical parameter for acoustic focusing when conventional parameters to achieve this effect are kept unchanged. Thus, our findings enable new approaches to the design of novel microfluidic devices.
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Ota, Nobutoshi; Yalikun, Yaxiaer; Suzuki, Tomoyuki; Lee, Sang Wook; Hosokawa, Yoichiroh; Goda, Keisuke; et al. (2019). Supplementary material from "Enhancement in acoustic focusing of micro and nanoparticles by thinning a microfluidic device". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.4397990.v1
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AUTHORS (7)
NO
Nobutoshi Ota
YY
Yaxiaer Yalikun
TS
Tomoyuki Suzuki
SL
Sang Wook Lee
YH
Yoichiroh Hosokawa
KG
Keisuke Goda
YT
Yo Tanaka