Contactless, programmable acoustofluidic manipulation of objects on water
0301 basic medicine
0303 health sciences
03 medical and health sciences
Sound
Larva
Niobium
Microfluidics
Transducers
Animals
Water
Oxides
Zebrafish
DOI:
10.1039/c9lc00465c
Publication Date:
2019-09-11T10:33:36Z
AUTHORS (14)
ABSTRACT
Contact-free manipulation of small objects (e.g., cells, tissues, and droplets) using acoustic waves eliminates physical contact with structures undesired surface adsorption. Pioneering acoustic-based, contact-free techniques levitation) enable programmable but are limited by evaporation, bulky transducers, inefficient coupling in air. Herein, we report an acoustofluidic mechanism for the contactless on water. A hollow-square-shaped interdigital transducer (IDT) is fabricated lithium niobate (LiNbO3), immersed water used as a sound source to generate micropump pump fluid ±x ±y orthogonal directions. As result, which float adjacent excited IDT can be pushed unidirectionally (horizontally) following directed wave propagation. fluidic processor was developed patterning units 6-by-6 array. We demonstrate contactless, oil droplets zebrafish larvae. This acoustofluidic-based opens avenues processing materials biosamples.
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