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Pi-seq-A customizable multichannel syringe pump for microfluidics.

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  • 1Institute for Medical Bioinformatics and Biostatistics (IMBB), Philipps University of Marburg, Hans-Meerwein-Strasse 6, 35032 Marburg, Germany.

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Summary
This summary is machine-generated.

Researchers developed an affordable, open-source microfluidics device for single-cell analysis. This customizable system, built with 3D-printed parts and a Raspberry Pi, supports high-quality single-cell RNA sequencing workflows.

Keywords:
MicrofluidicsRaspberry PiSingle cell RNA sequencingSyringe pumpsTemperature-controlledscRNA-seq

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Area of Science:

  • Biological Sciences
  • Biotechnology
  • Bioengineering

Background:

  • Single-cell technologies drive demand for advanced microfluidic devices.
  • Existing commercial microfluidic platforms are often costly, inflexible, and proprietary.

Purpose of the Study:

  • To develop an open-source, customizable, and low-cost microfluidics device for biological applications.
  • To enable integration with single-cell RNA sequencing workflows.

Main Methods:

  • Designed an open-source, multichannel, zero-backflow microfluidics device using syringe pumps controlled by a Raspberry Pi.
  • Incorporated readily available, 3D-printed parts, a custom PCB, and a Peltier-based temperature controller.
  • Integrated a mixer to prevent cell sedimentation and enable precise temperature control.

Main Results:

  • The device costs under €600 and is easily serviceable and customizable.
  • Demonstrated reliable operation and cell separation in a droplet-based single-cell RNA sequencing workflow.
  • Successfully analyzed a mixture of human and insect cells, generating data from 17,769 single cells.

Conclusions:

  • The developed open-source microfluidics system offers a cost-effective and flexible alternative to commercial platforms.
  • This device facilitates advanced single-cell analysis, including single-cell RNA sequencing.
  • The system's customizability and low cost make it accessible for diverse biological research applications.