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Micromachines
Volume 4
Issue 1
10.3390/mi4010009
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Article

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

by
Stefan Borja Bammesberger
1,*,
Sabrina Kartmann
1,
Laurent Tanguy
2,
Dong Liang
2,
Klaus Mutschler
1,
Andreas Ernst
1,3,
Roland Zengerle
1,2 and
Peter Koltay
1,3
1
Department of Microsystems Engineering, University of Freiburg, IMTEK, Georges-Köhler Allee 103, 79110 Freiburg, Germany
2
Institut für Mikro- und Informationstechnik, HSG-IMIT, Wilhelm-Schickard-Straβe 10, 78052 Villingen-Schwenningen, Germany
3
Biofluidix GmbH, Georges-Köhler Allee 103, 79110 Freiburg, Germany
*
Author to whom correspondence should be addressed.
Micromachines 2013, 4(1), 9-21; https://doi.org/10.3390/mi4010009
Submission received: 11 December 2012 / Revised: 4 February 2013 / Accepted: 4 February 2013 / Published: 28 February 2013
(This article belongs to the Special Issue Selected Papers from the 1st International Conference on Microfluidic Handling Systems)
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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 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. https://doi.org/10.3390/mi4010009

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. https://doi.org/10.3390/mi4010009

Chicago/Turabian Style

Bammesberger, Stefan Borja, Sabrina Kartmann, Laurent Tanguy, Dong Liang, Klaus Mutschler, Andreas Ernst, Roland Zengerle, and Peter Koltay. 2013. "A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range" Micromachines 4, no. 1: 9-21. https://doi.org/10.3390/mi4010009

APA Style

Bammesberger, S. B., Kartmann, S., Tanguy, L., Liang, D., Mutschler, K., Ernst, A., Zengerle, R., & Koltay, P. (2013). A Low-Cost, Normally Closed, Solenoid Valve for Non-Contact Dispensing in the Sub-µL Range. Micromachines, 4(1), 9-21. https://doi.org/10.3390/mi4010009

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