We designed and built a microfluidic device for the generation of liquid jets produced by thermocavitation. A continuous wave (CW) laser was focused inside a micro-chamber filled with a light-absorbing solution to create a rapidly expanding vapor bubble. The chamber is connected to a micro-channel which focuses and ejects the liquid jet through the exit. The bubble growth and the jet velocity were measured as a function of the devices geometry (channel diameter D and chamber width A). The fastest jets were those for relatively large chamber size with respect to the channel diameter. Elongated and focused jets up to 29 m/s for a channel diameter of and chamber size of were obtained. The proposed CW laser-based device is potentially a compact option for a practical and commercially feasible needle-free injector.
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January 2016
Research Article|
January 13 2016
Continuous-wave laser generated jets for needle free applications
Carla Berrospe-Rodriguez
;
Carla Berrospe-Rodriguez
a)
1Departamento de Óptica,
Instituto Nacional de Astrofísica
, Óptica y Electrónica, Apartado Postal 51 y 216, 72000 Puebla, Pue., Mexico
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Claas Willem Visser;
Claas Willem Visser
2Physics of Fluids Group, MESA+ Institute and Faculty of Science and Technology,
University of Twente
, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Stefan Schlautmann;
Stefan Schlautmann
3Mesoscale Chemical Systems Group, MESA+ Institute and Faculty of Science and Technology,
University of Twente
, P.O. Box 217, 7500 AE Enschede, The
Netherlands
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Ruben Ramos-Garcia
;
Ruben Ramos-Garcia
1Departamento de Óptica,
Instituto Nacional de Astrofísica
, Óptica y Electrónica, Apartado Postal 51 y 216, 72000 Puebla, Pue., Mexico
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David Fernandez Rivas
David Fernandez Rivas
3Mesoscale Chemical Systems Group, MESA+ Institute and Faculty of Science and Technology,
University of Twente
, P.O. Box 217, 7500 AE Enschede, The
Netherlands
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a)
Electronic mail: cberrospe@inaoep.mx
Biomicrofluidics 10, 014104 (2016)
Article history
Received:
November 10 2015
Accepted:
January 05 2016
Citation
Carla Berrospe-Rodriguez, Claas Willem Visser, Stefan Schlautmann, Ruben Ramos-Garcia, David Fernandez Rivas; Continuous-wave laser generated jets for needle free applications. Biomicrofluidics 1 January 2016; 10 (1): 014104. https://doi.org/10.1063/1.4940038
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