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Microfluidic channel integrated with a lattice lightsheet microscopic system for continuous cell imaging.

Yu-Jui Fan1, Han-Yun Hsieh, Sheng-Fang Tsai

  • 1School of Biomedical Engineering, Taipei Medical University, 250 Wuxing St., Taipei 11031, Taiwan. ray.yj.fan@tmu.edu.tw.

Lab on a Chip
|December 9, 2020
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Summary

Researchers developed a continuous cell-imaging system using microfluidics and lattice lightsheet microscopy (LLSM). This advanced technique provides high-resolution, 3D cell imaging with reduced optical aberrations for enhanced biological studies.

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Area of Science:

  • Biomedical Engineering
  • Microscopy Technology
  • Cell Biology

Background:

  • Advanced microscopy techniques are crucial for understanding cellular processes.
  • Limitations in current imaging systems include optical aberrations and limited resolution.
  • Microfluidic platforms offer precise control over biological samples for imaging.

Purpose of the Study:

  • To develop a continuous cell-imaging system with subcellular resolution.
  • To integrate microfluidics with lattice lightsheet microscopy (LLSM).
  • To minimize optical aberrations for improved image quality.

Main Methods:

  • Fabrication of a microfluidic channel sealed with a water refractive index-matched thin film.
  • Utilizing lattice lightsheet microscopy (LLSM) for illumination.
  • Sequential acquisition of 2D cell images with a perpendicular imaging system.
  • Reconstruction of 3D cell images from sequential 2D data.

Main Results:

  • Achieved subcellular resolution in continuous cell imaging.
  • Demonstrated reduced light scattering and aberrations using the refractive index-matched film.
  • Obtained higher-resolution and higher-contrast cell images with a thinner lattice lightsheet.
  • Successfully reconstructed 3D cell images.

Conclusions:

  • The integrated microfluidic and LLSM system enables high-resolution, 3D live-cell imaging.
  • The refractive index-matching strategy effectively reduces optical aberrations.
  • This technology offers a powerful tool for dynamic cellular studies.