Active connectors for microfluidic drops on demand

J.C. Galas , D. Bartolo , V. Studer

Bibtex , URL
New J. Phys., 11, 075027
Published 31 Jul. 2009
DOI: 10.1088/1367-2630/11/7/075027
ISSN: 1367-2630


We introduce a simple and versatile microfluidic drop-on-demand solution that enables independent and dynamical control of both the drop size and the drop production rate. To do so, we combine a standard microfluidic T-junction and a novel active switching component that connects the microfluidic channel to the macroscopic liquid reservoirs. Firstly, we explain how to make this simple but accurate drop-on-demand device. Secondly, we carefully characterize its dynamic response and its range of operations. Finally, we show how to generate complex two-dimensional drop patterns dynamically in single or multiple synchronized drop-on-demand devices.