Micromachines 2013, 4(1), 9-21; doi:10.3390/mi4010009
Article

A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range

1,* email, 1email, 2email, 2email, 1email, 1,3email, 1,2email and 1,3email
Received: 11 December 2012; in revised form: 4 February 2013 / Accepted: 4 February 2013 / Published: 28 February 2013
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: We present a disposable, normally closed, non-contact dispensing valve for the sub-µL range. The miniaturized solenoid valve (diameter: 8 mm, height: 27.25 mm) is compatible to standard Luer-Lock interfaces. A highly dynamic actuation principle enables opening times down to 1 ms. The dispensing performance was evaluated for water (η = 1.03 mPas) and a 66% (w/w) glycerol/water solution (η = 16.98 mPas), at pressures varying from 200 to 800 mbar. The experimentally determined minimal dispensing volume was 163 nL (CV 1.6%) for water and 123 nL (CV 4.5%) for 66% (w/w) glycerol/water. The low-cost polymer valve enables high precision dispensing of liquid volumes down to the lower end of the sub-µL range comparable to high-end non-disposable micro-dispensing valves.
Keywords: non-contact dispensing; solenoid valve; normally closed; disposable
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MDPI and ACS Style

Bammesberger, S.B.; Kartmann, S.; Tanguy, L.; Liang, D.; Mutschler, K.; Ernst, A.; Zengerle, R.; Koltay, P. A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range. Micromachines 2013, 4, 9-21.

AMA Style

Bammesberger SB, Kartmann S, Tanguy L, Liang D, Mutschler K, Ernst A, Zengerle R, Koltay P. A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range. Micromachines. 2013; 4(1):9-21.

Chicago/Turabian Style

Bammesberger, Stefan B.; Kartmann, Sabrina; Tanguy, Laurent; Liang, Dong; Mutschler, Klaus; Ernst, Andreas; Zengerle, Roland; Koltay, Peter. 2013. "A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range." Micromachines 4, no. 1: 9-21.

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