Chipholder-integrated 3d-printed pneumatic logic controllers for microfluidic chips

Here we design, develop and test 3D printed pneumatic controllers which can be easily built into chip holders for microfluidic devices. On-chip pneumatic controllers are used for microfluidic process automation to reduce the complexity of chip interfacing and off-chip control.[1] Commonly, on-chip elastomeric valves are used [2] but these cost chip real-estate, and often require special lithographic techniques and multilayer device design [2,3]. 3Dprinted valves are a recent development.[5] We present an improved fabrication technique for 3D-printed valves and use them to construct logic control platforms which can be used on any chip with the correct fittings.