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Artículo
Pressure-Driven Filling of Closed-End Microchannel: Realization of Comb-Shaped Transducers for Acoustofluidics
Autor/es | Guo, Wei
Teo, Adrian J. T. Gañán-Calvo, Alfonso M. Song, Chaolong Nguyen, Nam-Trung Xi, Heng-Dong Tan, Say Hwa |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos |
Fecha de publicación | 2018 |
Fecha de depósito | 2020-04-16 |
Publicado en |
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Resumen | We demonstrate the complete filling of both deionized water (DI water) and liquid metal (eutectic
gallium-indium, EGaIn) into closed-end microchannels driven by a constant pressure at the inlet. A mathematical
model based ... We demonstrate the complete filling of both deionized water (DI water) and liquid metal (eutectic gallium-indium, EGaIn) into closed-end microchannels driven by a constant pressure at the inlet. A mathematical model based on gas diffusion through a porous polydimethylsiloxane (PDMS) wall is developed to unveil the physical mechanism in the filling process. The proposed theoretical analysis based on our model agrees well with the experimental observations. We also successfully generate traveling surface acoustic waves by actuating interdigitated microchannels filled with EGaIn. Our work provides significant insights into the fabrication of liquid electrodes that can be used for various acustofluidics applications |
Agencias financiadoras | Australian Research Council National Natural Science Foundation of China |
Identificador del proyecto | DE170100600
Grant No. 11472094 Grant No. 11772259 U1613227 B17037 |
Cita | Guo, W., Teo, A.J.T., Gañán-Calvo, A.M., Song, C., Nguyen, N., Xi, H. y Tan, S.H. (2018). Pressure-Driven Filling of Closed-End Microchannel: Realization of Comb-Shaped Transducers for Acoustofluidics. Physical Review Applied, 10 (5), 054045-1-054045-8. |
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