Open-source tubing-free impeller pump platform for controlled recirculating fluid flow for microfluidics and organs-on-chip
Sophie R. Cook, Erin E. Lawrence, Parastoo Sakinejad, Rebecca R. Pompano
TL;DR
This paper introduces a simple, affordable, and tubing-free pump for microfluidic systems that can be used in cell culture incubators and customized for various applications.
Contribution
A novel, open-source, tubing-free impeller pump platform for controlled microfluidic flow that is easy to assemble and use.
Findings
The pump provides recirculating fluid flow at velocities from µm/s to mm/s in microfluidic devices.
The system is compatible with cell culture incubators due to its low heat output.
The platform can be customized using 3D printing for different microfluidic or OOC device geometries.
Abstract
Fluid flow is utilized in many microscale technologies, including microfluidic chemical reactors, diagnostics, and organs-on-chip (OOCs). In particular, OOCs may rely on fluid flow for nutrient delivery, cellular communication, and application of shear stress. In order for microscale flow systems to be readily adopted by non-experts, a tubing-free, user-friendly pump would be useful, particularly one that is simple to use, affordable, and compatible with cell culture incubators. To address these needs, here we share the design and fabrication of an impeller pump platform that provides recirculating fluid flow through a microfluidic loop without the need for tubing connections. Flow is driven by rotating a magnetic stir bar or 3D-printed impeller in a pump well, using magnets mounted on a DC motor. The DC motors used produce negligible heat output in a compact system, making it…
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Taxonomy
Topics3D Printing in Biomedical Research · Innovative Microfluidic and Catalytic Techniques Innovation · Microfluidic and Capillary Electrophoresis Applications