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A Stand-Alone Microfluidic Chip for Long-Term Cell Culture.

Yibo Feng1, Yang Zeng1, Jiahao Fu1

  • 1State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics and Photon-Technology, Northwest University, No. 1, Xuefu Avenue, Xi'an 710127, China.

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Summary

This study introduces a low-cost, portable microfluidic cell culture system for live-cell microscopy. The device enables long-term cell maintenance and analysis outside traditional laboratory settings.

Keywords:
ITO glasscell culturefluidic chipin-fieldlive cell

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Microfluidics

Background:

  • Live-cell microscopy is essential but limited by expensive, bulky equipment.
  • Current cell culture systems require dedicated laboratory infrastructure.

Purpose of the Study:

  • To develop a portable, low-cost microfluidic cell culture system.
  • To enable live-cell microscopy in resource-limited settings and field applications.

Main Methods:

  • A compact microfluidic device (15 cm×11 cm×9 cm) powered by battery.
  • Automated delivery of 5% CO2-conditioned media and temperature control (37 °C).
  • Utilized ITO glass for precise temperature regulation.

Main Results:

  • Successfully maintained 3T3 fibroblasts, HepG2 cells, MB-231 cells, and tumor spheroids for over 48 hours.
  • Cell morphology, mobility, and growth rates were comparable to commercial incubators.
  • Demonstrated viability on a standard microscope stage.

Conclusions:

  • The portable system offers a cost-effective alternative for live-cell imaging.
  • Facilitates cell-based experiments in diverse environments, including field studies.
  • Overcomes limitations of traditional cell culture equipment for accessibility and portability.