Arrayed microvalves

Recent progress in microflow devices and systems is described in this chapter. Examples of passive and active flow control methods applicable in practical pTAS are described in Sect. 2. Multiple flow control systems, i.e., arrayed microvalves, for advanced high-throughput microflow systems are then introduced in Sect. 3. Examples of microflow devices and systems for chemical and biochemical applications are described in Sect. 4. 

Multiple Flow Control Systems Arrayed Microvalves... 

Baechi, D., Buser, R., Dual, J., High-density microvalve arrays for sample processing in PCR chips. Biomed. Microdevices 2001, 3(3), 183-190. 

Fig. 16 Multiplexed valve control system [59]. (a) Overview of 2 (256) microvalve array, (b) Operating principle of multiplexed valve-control system...

Kawai K, Shibata Y, Shoji S (2009) 100 Picoliter droplet handling using 256 (2 ) microvalve array with 18 multiplexed control lines. In proceedings international conference on solid-state sensors, actuators and microsystems, Transducers 09, Denver, CO, 21-25 June, 2009, pp 802-805... 

Fig. 1 Different methods for worm immobilization on a microfluidic platform (a) tapered channel array [21] (b) microvalves [26] and (c) suction channel array [27]...

Li N, Hsu CH, Folch A (2005) Parallel mixing of photolithographically defined nanoliter volumes using elastomeric microvalve arrays. Electrophoresis 26(19) 3758-3764... 

Figure 12.3 Illustration of a bilayer microvalve array for drug delivery. Under each flap is a vial containing the substance to be released. Actuating the bilayer causes it to lift up, opening the container (Reproduced with permission from 126]. Copyright (2006) Elsevier).

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