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- Haasl, Sjoerd, et al.
(author)
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Robust, large-deflection, in-plane thermal polymer V-shaped actuators
- 2004
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In: MEMS 2004. - New York : IEEE. - 078038265X ; , s. 510-513
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Conference paper (peer-reviewed)abstract
- We present the design, fabrication and characteristics of the first in-plane V-shaped polymer actuator. Several different designs are evaluated and compared with each other. The intended application for this actuator is optical component alignment.
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- Melin, Jessica, et al.
(author)
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A liquid-triggered liquid microvalve for on-chip flow control
- 2004
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In: Sensors and actuators. B, Chemical. - : Elsevier BV. - 0925-4005 .- 1873-3077. ; 100:3, s. 463-468
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Journal article (peer-reviewed)abstract
- This work introduces a novel surface tension and geometry based liquid-triggered liquid microvalve for on-chip liquid flow control. The simultaneous presence of two liquid plugs at the uncomplicated valve junction triggers the further movement of the liquids and overcomes the stop valve function of the device, thereby providing a precise means of timing liquid movement on-chip. The generic structure was shown to successfully function and forms the basis for several novel and useful functions, including fluidic AND gates, contactless on-chip liquid sample control, timing of independent processes on the same microchip, bubble-free joining of liquids, all of which pose great challenges in the area of microfluidics. The device may be applied to chemical analysis, drug discovery, medical diagnostics and biochemistry.
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